475991097 has 16 divisors (see below), whose sum is σ = 668535360. Its totient is φ = 300411072.

The previous prime is 475991077. The next prime is 475991101. The reversal of 475991097 is 790199574.

It is a happy number.

It is not a de Polignac number, because 475991097 - 2²⁰ = 474942521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (475991057) 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, 125643 + ... + 129375.

It is an arithmetic number, because the mean of its divisors is an integer number (41783460).

Almost surely, 2^475991097 is an apocalyptic number.

It is an amenable number.

475991097 is a deficient number, since it is larger than the sum of its proper divisors (192544263).

475991097 is a wasteful number, since it uses less digits than its factorization.

475991097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992.

The product of its (nonzero) digits is 714420, while the sum is 51.

The square root of 475991097 is about 21817.2201941494. The cubic root of 475991097 is about 780.7876642233.

The spelling of 475991097 in words is "four hundred seventy-five million, nine hundred ninety-one thousand, ninety-seven".