690088032 has 48 divisors (see below), whose sum is σ = 2012759280. Its totient is φ = 230029056.

The previous prime is 690088019. The next prime is 690088081. The reversal of 690088032 is 230880096.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398493 + ... + 400220.

It is an arithmetic number, because the mean of its divisors is an integer number (41932485).

Almost surely, 2^690088032 is an apocalyptic number.

It is an amenable number.

690088032 is an abundant number, since it is smaller than the sum of its proper divisors (1322671248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690088032 is a wasteful number, since it uses less digits than its factorization.

690088032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798732 (or 798718 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 690088032 is about 26269.5266801669. The cubic root of 690088032 is about 883.6931703375.

The spelling of 690088032 in words is "six hundred ninety million, eighty-eight thousand, thirty-two".