690252351 has 8 divisors (see below), whose sum is σ = 925983360. Its totient is φ = 457344792.

The previous prime is 690252347. The next prime is 690252359. The reversal of 690252351 is 153252096.

690252351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 690252351 - 2² = 690252347 is a prime.

It is a super-2 number, since 2×690252351² = 952896616122054402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690252359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705291 + ... + 706268.

It is an arithmetic number, because the mean of its divisors is an integer number (115747920).

Almost surely, 2^690252351 is an apocalyptic number.

690252351 is a deficient number, since it is larger than the sum of its proper divisors (235731009).

690252351 is a wasteful number, since it uses less digits than its factorization.

690252351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411725.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 690252351 is about 26272.6540532166. The cubic root of 690252351 is about 883.7633044110.

The spelling of 690252351 in words is "six hundred ninety million, two hundred fifty-two thousand, three hundred fifty-one".