690522613 has 16 divisors (see below), whose sum is σ = 778821120. Its totient is φ = 606542400.

The previous prime is 690522587. The next prime is 690522631. The reversal of 690522613 is 316225096.

It is a cyclic number.

It is not a de Polignac number, because 690522613 - 2⁹ = 690522101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690522673) 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, 297903 + ... + 300211.

It is an arithmetic number, because the mean of its divisors is an integer number (48676320).

Almost surely, 2^690522613 is an apocalyptic number.

It is an amenable number.

690522613 is a deficient number, since it is larger than the sum of its proper divisors (88298507).

690522613 is a wasteful number, since it uses less digits than its factorization.

690522613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 690522613 is about 26277.7969586493. The cubic root of 690522613 is about 883.8786325089.

The spelling of 690522613 in words is "six hundred ninety million, five hundred twenty-two thousand, six hundred thirteen".