715620887 has 2 divisors, whose sum is σ = 715620888. Its totient is φ = 715620886.

The previous prime is 715620877. The next prime is 715620889. The reversal of 715620887 is 788026517.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 715620887 - 2⁶ = 715620823 is a prime.

It is a super-2 number, since 2×715620887² = 1024226507821333538, which contains 22 as substring.

Together with 715620889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (715620889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357810443 + 357810444.

It is an arithmetic number, because the mean of its divisors is an integer number (357810444).

Almost surely, 2^715620887 is an apocalyptic number.

715620887 is a deficient number, since it is larger than the sum of its proper divisors (1).

715620887 is an equidigital number, since it uses as much as digits as its factorization.

715620887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 715620887 is about 26751.0913235330. The cubic root of 715620887 is about 894.4601623678.

The spelling of 715620887 in words is "seven hundred fifteen million, six hundred twenty thousand, eight hundred eighty-seven".