508163864 has 64 divisors (see below), whose sum is σ = 1092722400. Its totient is φ = 219469824.

The previous prime is 508163857. The next prime is 508163869. The reversal of 508163864 is 468361805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508163869) 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, 347567 + ... + 349025.

Almost surely, 2^508163864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 508163864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546361200).

508163864 is an abundant number, since it is smaller than the sum of its proper divisors (584558536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

508163864 is a wasteful number, since it uses less digits than its factorization.

508163864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692 (or 1688 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 508163864 is about 22542.4901907487. The cubic root of 508163864 is about 797.9970016826.

The spelling of 508163864 in words is "five hundred eight million, one hundred sixty-three thousand, eight hundred sixty-four".