516690 has 24 divisors (see below), whose sum is σ = 1343628. Its totient is φ = 137760.

The previous prime is 516689. The next prime is 516701. The reversal of 516690 is 96615.

It can be written as a sum of positive squares in 2 ways, for example, as 514089 + 2601 = 717^2 + 51^2 .

It is a super-2 number, since 2×516690² = 533937112200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2781 + ... + 2960.

2⁵¹⁶⁶⁹⁰ is an apocalyptic number.

516690 is an abundant number, since it is smaller than the sum of its proper divisors (826938).

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

516690 is a wasteful number, since it uses less digits than its factorization.

516690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5754 (or 5751 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 516690 is about 718.8115191064. The cubic root of 516690 is about 80.2435287529.

The spelling of 516690 in words is "five hundred sixteen thousand, six hundred ninety".