4067961 has 4 divisors (see below), whose sum is σ = 5423952. Its totient is φ = 2711972.

The previous prime is 4067951. The next prime is 4067963. The reversal of 4067961 is 1697604.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 4067961 - 2¹¹ = 4065913 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4067963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677991 + ... + 677996.

It is an arithmetic number, because the mean of its divisors is an integer number (1355988).

Almost surely, 2^4067961 is an apocalyptic number.

It is an amenable number.

4067961 is a deficient number, since it is larger than the sum of its proper divisors (1355991).

4067961 is a wasteful number, since it uses less digits than its factorization.

4067961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355990.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 4067961 is about 2016.9186894865. The cubic root of 4067961 is about 159.6340725993.

The spelling of 4067961 in words is "four million, sixty-seven thousand, nine hundred sixty-one".