900165923 has 2 divisors, whose sum is σ = 900165924. Its totient is φ = 900165922.

The previous prime is 900165853. The next prime is 900166013. The reversal of 900165923 is 329561009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 900165923 - 2¹⁶ = 900100387 is a prime.

It is not a weakly prime, because it can be changed into another prime (900165023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450082961 + 450082962.

It is an arithmetic number, because the mean of its divisors is an integer number (450082962).

Almost surely, 2^900165923 is an apocalyptic number.

900165923 is a deficient number, since it is larger than the sum of its proper divisors (1).

900165923 is an equidigital number, since it uses as much as digits as its factorization.

900165923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 900165923 is about 30002.7652558893. The cubic root of 900165923 is about 965.5487131433.

The spelling of 900165923 in words is "nine hundred million, one hundred sixty-five thousand, nine hundred twenty-three".