913665923 has 2 divisors, whose sum is σ = 913665924. Its totient is φ = 913665922.

The previous prime is 913665913. The next prime is 913665943. The reversal of 913665923 is 329566319.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 913665923 - 2⁶ = 913665859 is a prime.

It is not a weakly prime, because it can be changed into another prime (913665913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456832961 + 456832962.

It is an arithmetic number, because the mean of its divisors is an integer number (456832962).

Almost surely, 2^913665923 is an apocalyptic number.

913665923 is a deficient number, since it is larger than the sum of its proper divisors (1).

913665923 is an equidigital number, since it uses as much as digits as its factorization.

913665923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 44.

The square root of 913665923 is about 30226.9072681940. The cubic root of 913665923 is about 970.3516360722.

The spelling of 913665923 in words is "nine hundred thirteen million, six hundred sixty-five thousand, nine hundred twenty-three".