690425757 has 12 divisors (see below), whose sum is σ = 1139750560. Its totient is φ = 394528968.

The previous prime is 690425731. The next prime is 690425803. The reversal of 690425757 is 757524096.

It is not a de Polignac number, because 690425757 - 2⁶ = 690425693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690425557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5479507 + ... + 5479632.

Almost surely, 2^690425757 is an apocalyptic number.

It is an amenable number.

690425757 is a deficient number, since it is larger than the sum of its proper divisors (449324803).

690425757 is a wasteful number, since it uses less digits than its factorization.

690425757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10959152 (or 10959149 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The square root of 690425757 is about 26275.9539693614. The cubic root of 690425757 is about 883.8373048970.

The spelling of 690425757 in words is "six hundred ninety million, four hundred twenty-five thousand, seven hundred fifty-seven".