402825923 has 2 divisors, whose sum is σ = 402825924. Its totient is φ = 402825922.

The previous prime is 402825889. The next prime is 402825947. The reversal of 402825923 is 329528204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402825923 - 2⁸ = 402825667 is a prime.

It is not a weakly prime, because it can be changed into another prime (402825953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201412961 + 201412962.

It is an arithmetic number, because the mean of its divisors is an integer number (201412962).

Almost surely, 2^402825923 is an apocalyptic number.

402825923 is a deficient number, since it is larger than the sum of its proper divisors (1).

402825923 is an equidigital number, since it uses as much as digits as its factorization.

402825923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 402825923 is about 20070.5237350698. The cubic root of 402825923 is about 738.5373611245.

The spelling of 402825923 in words is "four hundred two million, eight hundred twenty-five thousand, nine hundred twenty-three".