506979768 has 32 divisors (see below), whose sum is σ = 1291366800. Its totient is φ = 165804288.

The previous prime is 506979749. The next prime is 506979833. The reversal of 506979768 is 867979605.

It is a super-2 number, since 2×506979768² = 514056970322667648, which contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198013 + ... + 200556.

Almost surely, 2^506979768 is an apocalyptic number.

It is an amenable number.

506979768 is an abundant number, since it is smaller than the sum of its proper divisors (784387032).

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

506979768 is a wasteful number, since it uses less digits than its factorization.

506979768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398631 (or 398627 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The square root of 506979768 is about 22516.2112265807. The cubic root of 506979768 is about 797.3767031277.

The spelling of 506979768 in words is "five hundred six million, nine hundred seventy-nine thousand, seven hundred sixty-eight".