679213056 has 96 divisors (see below), whose sum is σ = 1822504320. Its totient is φ = 224944128.

The previous prime is 679213049. The next prime is 679213063. The reversal of 679213056 is 650312976.

It is an interprime number because it is at equal distance from previous prime (679213049) and next prime (679213063).

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×679213056² = 922660750881718272, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1394445 + ... + 1394931.

It is an arithmetic number, because the mean of its divisors is an integer number (18984420).

Almost surely, 2^679213056 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 679213056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (911252160).

679213056 is an abundant number, since it is smaller than the sum of its proper divisors (1143291264).

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

679213056 is a wasteful number, since it uses less digits than its factorization.

679213056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 679213056 is about 26061.7162903750. The cubic root of 679213056 is about 879.0265820464.

The spelling of 679213056 in words is "six hundred seventy-nine million, two hundred thirteen thousand, fifty-six".