679246776 has 128 divisors (see below), whose sum is σ = 2061158400. Its totient is φ = 205994880.

The previous prime is 679246759. The next prime is 679246783. The reversal of 679246776 is 677642976.

It is a happy number.

It is a super-2 number, since 2×679246776² = 922752365412788352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 197665 + ... + 201071.

It is an arithmetic number, because the mean of its divisors is an integer number (16102800).

Almost surely, 2^679246776 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 679246776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1030579200).

679246776 is an abundant number, since it is smaller than the sum of its proper divisors (1381911624).

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

679246776 is a wasteful number, since it uses less digits than its factorization.

679246776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506 (or 3496 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The square root of 679246776 is about 26062.3632082741. The cubic root of 679246776 is about 879.0411284324.

The spelling of 679246776 in words is "six hundred seventy-nine million, two hundred forty-six thousand, seven hundred seventy-six".