506997808 has 40 divisors (see below), whose sum is σ = 1020379136. Its totient is φ = 243777600.

The previous prime is 506997787. The next prime is 506997857. The reversal of 506997808 is 808799605.

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, 77713 + ... + 83983.

Almost surely, 2^506997808 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 506997808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510189568).

506997808 is an abundant number, since it is smaller than the sum of its proper divisors (513381328).

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

506997808 is a wasteful number, since it uses less digits than its factorization.

506997808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473 (or 6467 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 506997808 is about 22516.6118232739. The cubic root of 506997808 is about 797.3861607734.

The spelling of 506997808 in words is "five hundred six million, nine hundred ninety-seven thousand, eight hundred eight".