716690 has 32 divisors (see below), whose sum is σ = 1436400. Its totient is φ = 255744.

The previous prime is 716687. The next prime is 716693. The reversal of 716690 is 96617.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (716687) and next prime (716693).

It can be written as a sum of positive squares in 8 ways, for example, as 182329 + 534361 = 427^2 + 731^2 .

It is a super-2 number, since 2×716690² = 1027289112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (716693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4736 + ... + 4884.

2⁷¹⁶⁶⁹⁰ is an apocalyptic number.

716690 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

716690 is a wasteful number, since it uses less digits than its factorization.

716690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 716690 is about 846.5754544044. The cubic root of 716690 is about 89.4905371642.

The spelling of 716690 in words is "seven hundred sixteen thousand, six hundred ninety".