475698831 has 4 divisors (see below), whose sum is σ = 634265112. Its totient is φ = 317132552.

The previous prime is 475698827. The next prime is 475698863. The reversal of 475698831 is 138896574.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 475698831 - 2² = 475698827 is a prime.

It is a super-2 number, since 2×475698831² = 452578755629533122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475698631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79283136 + ... + 79283141.

It is an arithmetic number, because the mean of its divisors is an integer number (158566278).

Almost surely, 2^475698831 is an apocalyptic number.

475698831 is a deficient number, since it is larger than the sum of its proper divisors (158566281).

475698831 is a wasteful number, since it uses less digits than its factorization.

475698831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158566280.

The product of its digits is 1451520, while the sum is 51.

The square root of 475698831 is about 21810.5211079424. The cubic root of 475698831 is about 780.6278262134.

The spelling of 475698831 in words is "four hundred seventy-five million, six hundred ninety-eight thousand, eight hundred thirty-one".