694400814 has 12 divisors (see below), whose sum is σ = 1504535136. Its totient is φ = 231466932.

The previous prime is 694400807. The next prime is 694400827. The reversal of 694400814 is 418004496.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19288894 + ... + 19288929.

It is an arithmetic number, because the mean of its divisors is an integer number (125377928).

Almost surely, 2^694400814 is an apocalyptic number.

694400814 is an abundant number, since it is smaller than the sum of its proper divisors (810134322).

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

694400814 is a wasteful number, since it uses less digits than its factorization.

694400814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38577831 (or 38577828 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 694400814 is about 26351.4859922548. The cubic root of 694400814 is about 885.5302615575.

The spelling of 694400814 in words is "six hundred ninety-four million, four hundred thousand, eight hundred fourteen".