697512613 has 16 divisors (see below), whose sum is σ = 812289280. Its totient is φ = 586727280.

The previous prime is 697512593. The next prime is 697512631. The reversal of 697512613 is 316215796.

It is a de Polignac number, because none of the positive numbers 2^k-697512613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697512653) 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, 1588648 + ... + 1589086.

It is an arithmetic number, because the mean of its divisors is an integer number (50768080).

Almost surely, 2^697512613 is an apocalyptic number.

It is an amenable number.

697512613 is a deficient number, since it is larger than the sum of its proper divisors (114776667).

697512613 is an frugal number, since it uses more digits than its factorization.

697512613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 507 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 697512613 is about 26410.4640814962. The cubic root of 697512613 is about 886.8510579227.

The spelling of 697512613 in words is "six hundred ninety-seven million, five hundred twelve thousand, six hundred thirteen".