4070081 has 4 divisors (see below), whose sum is σ = 4081200. Its totient is φ = 4058964.

The previous prime is 4070069. The next prime is 4070093. The reversal of 4070081 is 1800704.

It is a happy number.

4070081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (4070069) and next prime (4070093).

It is a cyclic number.

It is not a de Polignac number, because 4070081 - 2¹⁴ = 4053697 is a prime.

It is a super-2 number, since 2×4070081² = 33131118693122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4070051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4991 + ... + 5748.

It is an arithmetic number, because the mean of its divisors is an integer number (1020300).

Almost surely, 2^4070081 is an apocalyptic number.

It is an amenable number.

4070081 is a deficient number, since it is larger than the sum of its proper divisors (11119).

4070081 is a wasteful number, since it uses less digits than its factorization.

4070081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11118.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 4070081 is about 2017.4441751880. Note that the first 3 decimals coincide. The cubic root of 4070081 is about 159.6617986486.

Adding to 4070081 its reverse (1800704), we get a palindrome (5870785).

The spelling of 4070081 in words is "four million, seventy thousand, eighty-one".