508997966 has 32 divisors (see below), whose sum is σ = 815063040. Its totient is φ = 237970656.

The previous prime is 508997953. The next prime is 508997971. The reversal of 508997966 is 669799805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315935 + ... + 317541.

It is an arithmetic number, because the mean of its divisors is an integer number (25470720).

Almost surely, 2^508997966 is an apocalyptic number.

508997966 is a deficient number, since it is larger than the sum of its proper divisors (306065074).

508997966 is a wasteful number, since it uses less digits than its factorization.

508997966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808.

The product of its (nonzero) digits is 7348320, while the sum is 59.

The square root of 508997966 is about 22560.9832675795. The cubic root of 508997966 is about 798.4333747342.

The spelling of 508997966 in words is "five hundred eight million, nine hundred ninety-seven thousand, nine hundred sixty-six".