677500631 has 2 divisors, whose sum is σ = 677500632. Its totient is φ = 677500630.

The previous prime is 677500601. The next prime is 677500633. The reversal of 677500631 is 136005776.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677500631 is a prime.

It is a super-2 number, since 2×677500631² = 918014210010796322, which contains 22 as substring.

Together with 677500633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 677500591 and 677500600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677500633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338750315 + 338750316.

It is an arithmetic number, because the mean of its divisors is an integer number (338750316).

Almost surely, 2^677500631 is an apocalyptic number.

677500631 is a deficient number, since it is larger than the sum of its proper divisors (1).

677500631 is an equidigital number, since it uses as much as digits as its factorization.

677500631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 677500631 is about 26028.8422908127. The cubic root of 677500631 is about 878.2872294099.

The spelling of 677500631 in words is "six hundred seventy-seven million, five hundred thousand, six hundred thirty-one".