690528057 has 8 divisors (see below), whose sum is σ = 960734784. Its totient is φ = 440336688.

The previous prime is 690528053. The next prime is 690528067. The reversal of 690528057 is 750825096.

690528057 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 690528057 - 2² = 690528053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (690528053) 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, 5003758 + ... + 5003895.

It is an arithmetic number, because the mean of its divisors is an integer number (120091848).

Almost surely, 2^690528057 is an apocalyptic number.

It is an amenable number.

690528057 is a deficient number, since it is larger than the sum of its proper divisors (270206727).

690528057 is a wasteful number, since it uses less digits than its factorization.

690528057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10007679.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 690528057 is about 26277.9005439932. The cubic root of 690528057 is about 883.8809553016.

The spelling of 690528057 in words is "six hundred ninety million, five hundred twenty-eight thousand, fifty-seven".