508394887 has 32 divisors (see below), whose sum is σ = 687988224. Its totient is φ = 362793600.

The previous prime is 508394879. The next prime is 508394899. The reversal of 508394887 is 788493805.

It is not a de Polignac number, because 508394887 - 2³ = 508394879 is a prime.

It is a super-2 number, since 2×508394887² = 516930722255485538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508394827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129193 + ... + 133069.

It is an arithmetic number, because the mean of its divisors is an integer number (21499632).

Almost surely, 2^508394887 is an apocalyptic number.

508394887 is a deficient number, since it is larger than the sum of its proper divisors (179593337).

508394887 is a wasteful number, since it uses less digits than its factorization.

508394887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The square root of 508394887 is about 22547.6137761848. The cubic root of 508394887 is about 798.1179126354.

The spelling of 508394887 in words is "five hundred eight million, three hundred ninety-four thousand, eight hundred eighty-seven".