694988996 has 24 divisors (see below), whose sum is σ = 1310921304. Its totient is φ = 320486400.

The previous prime is 694988977. The next prime is 694989013. The reversal of 694988996 is 699889496.

It can be written as a sum of positive squares in 4 ways, for example, as 69488896 + 625500100 = 8336^2 + 25010^2 .

It is a super-2 number, since 2×694988996² = 966019409122176032, which contains 22 as substring.

It is an unprimeable number.

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, 62516 + ... + 72788.

It is an arithmetic number, because the mean of its divisors is an integer number (54621721).

Almost surely, 2^694988996 is an apocalyptic number.

It is an amenable number.

694988996 is a deficient number, since it is larger than the sum of its proper divisors (615932308).

694988996 is a wasteful number, since it uses less digits than its factorization.

694988996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11591 (or 11589 counting only the distinct ones).

The product of its digits is 60466176, while the sum is 68.

The square root of 694988996 is about 26362.6439493462. The cubic root of 694988996 is about 885.7802161268.

The spelling of 694988996 in words is "six hundred ninety-four million, nine hundred eighty-eight thousand, nine hundred ninety-six".