690707064 has 32 divisors (see below), whose sum is σ = 1734192720. Its totient is φ = 229245696.

The previous prime is 690707047. The next prime is 690707081. The reversal of 690707064 is 460707096.

690707064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (690707047) and next prime (690707081).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56167 + ... + 67350.

Almost surely, 2^690707064 is an apocalyptic number.

It is an amenable number.

690707064 is an abundant number, since it is smaller than the sum of its proper divisors (1043485656).

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

690707064 is a wasteful number, since it uses less digits than its factorization.

690707064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123759 (or 123755 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 690707064 is about 26281.3063602249. The cubic root of 690707064 is about 883.9573254585.

The spelling of 690707064 in words is "six hundred ninety million, seven hundred seven thousand, sixty-four".