690252572 has 12 divisors (see below), whose sum is σ = 1246908096. Its totient is φ = 333993120.

The previous prime is 690252533. The next prime is 690252587. The reversal of 690252572 is 275252096.

It is a super-2 number, since 2×690252572² = 952897226305230368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2783153 + ... + 2783400.

It is an arithmetic number, because the mean of its divisors is an integer number (103909008).

Almost surely, 2^690252572 is an apocalyptic number.

690252572 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

690252572 is a deficient number, since it is larger than the sum of its proper divisors (556655524).

690252572 is a wasteful number, since it uses less digits than its factorization.

690252572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566588 (or 5566586 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 690252572 is about 26272.6582591104. The cubic root of 690252572 is about 883.7633987300.

The spelling of 690252572 in words is "six hundred ninety million, two hundred fifty-two thousand, five hundred seventy-two".