396930923 has 2 divisors, whose sum is σ = 396930924. Its totient is φ = 396930922.

The previous prime is 396930901. The next prime is 396930949. The reversal of 396930923 is 329039693.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (329039693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 396930923 - 2²⁸ = 128495467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (396930223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198465461 + 198465462.

It is an arithmetic number, because the mean of its divisors is an integer number (198465462).

Almost surely, 2^396930923 is an apocalyptic number.

396930923 is a deficient number, since it is larger than the sum of its proper divisors (1).

396930923 is an equidigital number, since it uses as much as digits as its factorization.

396930923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 44.

The square root of 396930923 is about 19923.1253321360. The cubic root of 396930923 is about 734.9170301395.

The spelling of 396930923 in words is "three hundred ninety-six million, nine hundred thirty thousand, nine hundred twenty-three".