716631623 has 2 divisors, whose sum is σ = 716631624. Its totient is φ = 716631622.

The previous prime is 716631611. The next prime is 716631637. The reversal of 716631623 is 326136617.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 716631623 - 2²⁰ = 715583047 is a prime.

It is a super-2 number, since 2×716631623² = 1027121766167228258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716631653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358315811 + 358315812.

It is an arithmetic number, because the mean of its divisors is an integer number (358315812).

Almost surely, 2^716631623 is an apocalyptic number.

716631623 is a deficient number, since it is larger than the sum of its proper divisors (1).

716631623 is an equidigital number, since it uses as much as digits as its factorization.

716631623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 35.

The square root of 716631623 is about 26769.9761486633. The cubic root of 716631623 is about 894.8810732192.

The spelling of 716631623 in words is "seven hundred sixteen million, six hundred thirty-one thousand, six hundred twenty-three".