690541712 has 30 divisors (see below), whose sum is σ = 1556362998. Its totient is φ = 295946112.

The previous prime is 690541703. The next prime is 690541759. The reversal of 690541712 is 217145096.

It can be written as a sum of positive squares in only one way, i.e., 596141056 + 94400656 = 24416^2 + 9716^2 .

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 5 ways as a sum of consecutive naturals, for example, 439613 + ... + 441180.

Almost surely, 2^690541712 is an apocalyptic number.

It is an amenable number.

690541712 is an abundant number, since it is smaller than the sum of its proper divisors (865821286).

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

690541712 is a wasteful number, since it uses less digits than its factorization.

690541712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880815 (or 880802 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 690541712 is about 26278.1603617909. The cubic root of 690541712 is about 883.8867814298.

The spelling of 690541712 in words is "six hundred ninety million, five hundred forty-one thousand, seven hundred twelve".