679581696 has 48 divisors (see below), whose sum is σ = 1811791800. Its totient is φ = 226525184.

The previous prime is 679581689. The next prime is 679581697. The reversal of 679581696 is 696185976.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679581697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49161 + ... + 61448.

Almost surely, 2^679581696 is an apocalyptic number.

It is an amenable number.

679581696 is an abundant number, since it is smaller than the sum of its proper divisors (1132210104).

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

679581696 is a wasteful number, since it uses less digits than its factorization.

679581696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110634 (or 110614 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The square root of 679581696 is about 26068.7877738878. The cubic root of 679581696 is about 879.1855825983.

The spelling of 679581696 in words is "six hundred seventy-nine million, five hundred eighty-one thousand, six hundred ninety-six".