402034979 has 2 divisors, whose sum is σ = 402034980. Its totient is φ = 402034978.

The previous prime is 402034951. The next prime is 402034991. The reversal of 402034979 is 979430204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402034979 - 2²⁰ = 400986403 is a prime.

It is not a weakly prime, because it can be changed into another prime (402034949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201017489 + 201017490.

It is an arithmetic number, because the mean of its divisors is an integer number (201017490).

Almost surely, 2^402034979 is an apocalyptic number.

402034979 is a deficient number, since it is larger than the sum of its proper divisors (1).

402034979 is an equidigital number, since it uses as much as digits as its factorization.

402034979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 402034979 is about 20050.8099337658. The cubic root of 402034979 is about 738.0536745846.

The spelling of 402034979 in words is "four hundred two million, thirty-four thousand, nine hundred seventy-nine".