475490917 has 12 divisors (see below), whose sum is σ = 525799008. Its totient is φ = 429657800.

The previous prime is 475490881. The next prime is 475491001. The reversal of 475490917 is 719094574.

It is not a de Polignac number, because 475490917 - 2¹¹ = 475488869 is a prime.

It is a super-2 number, since 2×475490917² = 452183224299001778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475493917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8442 + ... + 31972.

It is an arithmetic number, because the mean of its divisors is an integer number (43816584).

Almost surely, 2^475490917 is an apocalyptic number.

It is an amenable number.

475490917 is a deficient number, since it is larger than the sum of its proper divisors (50308091).

475490917 is a wasteful number, since it uses less digits than its factorization.

475490917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23720 (or 23709 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 475490917 is about 21805.7542176371. The cubic root of 475490917 is about 780.5140798014.

The spelling of 475490917 in words is "four hundred seventy-five million, four hundred ninety thousand, nine hundred seventeen".