475397923 has 16 divisors (see below), whose sum is σ = 638297856. Its totient is φ = 341943840.

The previous prime is 475397891. The next prime is 475397933. The reversal of 475397923 is 329793574.

It is not a de Polignac number, because 475397923 - 2⁵ = 475397891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (475397933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236461 + ... + 238462.

It is an arithmetic number, because the mean of its divisors is an integer number (39893616).

Almost surely, 2^475397923 is an apocalyptic number.

475397923 is a deficient number, since it is larger than the sum of its proper divisors (162899933).

475397923 is a wasteful number, since it uses less digits than its factorization.

475397923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474954.

The product of its digits is 1428840, while the sum is 49.

The square root of 475397923 is about 21803.6217862996. The cubic root of 475397923 is about 780.4631935446.

The spelling of 475397923 in words is "four hundred seventy-five million, three hundred ninety-seven thousand, nine hundred twenty-three".