4070645 has 4 divisors (see below), whose sum is σ = 4884780. Its totient is φ = 3256512.

The previous prime is 4070621. The next prime is 4070653. The reversal of 4070645 is 5460704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2093809 + 1976836 = 1447^2 + 1406^2 .

It is a cyclic number.

It is not a de Polignac number, because 4070645 - 2¹⁴ = 4054261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407060 + ... + 407069.

It is an arithmetic number, because the mean of its divisors is an integer number (1221195).

Almost surely, 2^4070645 is an apocalyptic number.

It is an amenable number.

4070645 is a deficient number, since it is larger than the sum of its proper divisors (814135).

4070645 is an equidigital number, since it uses as much as digits as its factorization.

4070645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814134.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 4070645 is about 2017.5839511654. The cubic root of 4070645 is about 159.6691732025.

The spelling of 4070645 in words is "four million, seventy thousand, six hundred forty-five".