679420924 has 96 divisors (see below), whose sum is σ = 1590579200. Its totient is φ = 246343680.

The previous prime is 679420879. The next prime is 679420933. The reversal of 679420924 is 429024976.

It is a super-2 number, since 2×679420924² = 923225583938027552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212812 + ... + 215980.

Almost surely, 2^679420924 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 679420924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795289600).

679420924 is an abundant number, since it is smaller than the sum of its proper divisors (911158276).

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

679420924 is a wasteful number, since it uses less digits than its factorization.

679420924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243 (or 3241 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 679420924 is about 26065.7039805182. The cubic root of 679420924 is about 879.1162460376.

The spelling of 679420924 in words is "six hundred seventy-nine million, four hundred twenty thousand, nine hundred twenty-four".