690294064 has 20 divisors (see below), whose sum is σ = 1337994720. Its totient is φ = 345005120.

The previous prime is 690294053. The next prime is 690294067. The reversal of 690294064 is 460492096.

It is not an unprimeable number, because it can be changed into a prime (690294067) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 39129 + ... + 53959.

It is an arithmetic number, because the mean of its divisors is an integer number (66899736).

Almost surely, 2^690294064 is an apocalyptic number.

It is an amenable number.

690294064 is a deficient number, since it is larger than the sum of its proper divisors (647700656).

690294064 is a wasteful number, since it uses less digits than its factorization.

690294064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17748 (or 17742 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 690294064 is about 26273.4478894568. The cubic root of 690294064 is about 883.7811064396.

The spelling of 690294064 in words is "six hundred ninety million, two hundred ninety-four thousand, sixty-four".