716631 has 4 divisors (see below), whose sum is σ = 955512. Its totient is φ = 477752.

The previous prime is 716629. The next prime is 716633. The reversal of 716631 is 136617.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (716629) and next prime (716633).

It is a cyclic number.

It is not a de Polignac number, because 716631 - 2¹ = 716629 is a prime.

It is a super-2 number, since 2×716631² = 1027119980322, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 716631.

It is not an unprimeable number, because it can be changed into a prime (716633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119436 + ... + 119441.

It is an arithmetic number, because the mean of its divisors is an integer number (238878).

2⁷¹⁶⁶³¹ is an apocalyptic number.

716631 is a deficient number, since it is larger than the sum of its proper divisors (238881).

716631 is a wasteful number, since it uses less digits than its factorization.

716631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238880.

The product of its digits is 756, while the sum is 24.

The square root of 716631 is about 846.5406074135. The cubic root of 716631 is about 89.4880813899.

The spelling of 716631 in words is "seven hundred sixteen thousand, six hundred thirty-one".