694738064 has 40 divisors (see below), whose sum is σ = 1361162880. Its totient is φ = 343491200.

The previous prime is 694738061. The next prime is 694738073. The reversal of 694738064 is 460837496.

It is not an unprimeable number, because it can be changed into a prime (694738061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965897 + ... + 966615.

It is an arithmetic number, because the mean of its divisors is an integer number (34029072).

Almost surely, 2^694738064 is an apocalyptic number.

It is an amenable number.

694738064 is a deficient number, since it is larger than the sum of its proper divisors (666424816).

694738064 is a wasteful number, since it uses less digits than its factorization.

694738064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 694738064 is about 26357.8842853519. The cubic root of 694738064 is about 885.6735970011.

The spelling of 694738064 in words is "six hundred ninety-four million, seven hundred thirty-eight thousand, sixty-four".