679911264 has 144 divisors (see below), whose sum is σ = 2019064320. Its totient is φ = 216760320.

The previous prime is 679911203. The next prime is 679911283. The reversal of 679911264 is 462119976.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 1060384 + ... + 1061024.

It is an arithmetic number, because the mean of its divisors is an integer number (14021280).

Almost surely, 2^679911264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679911264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009532160).

679911264 is an abundant number, since it is smaller than the sum of its proper divisors (1339153056).

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

679911264 is a wasteful number, since it uses less digits than its factorization.

679911264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 802 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 679911264 is about 26075.1081301689. The cubic root of 679911264 is about 879.3276820738.

The spelling of 679911264 in words is "six hundred seventy-nine million, nine hundred eleven thousand, two hundred sixty-four".