679578745 has 8 divisors (see below), whose sum is σ = 841800960. Its totient is φ = 526125360.

The previous prime is 679578737. The next prime is 679578811. The reversal of 679578745 is 547875976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 679578745 - 2³ = 679578737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 679578745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2192035 + ... + 2192344.

It is an arithmetic number, because the mean of its divisors is an integer number (105225120).

Almost surely, 2^679578745 is an apocalyptic number.

It is an amenable number.

679578745 is a deficient number, since it is larger than the sum of its proper divisors (162222215).

679578745 is a wasteful number, since it uses less digits than its factorization.

679578745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384415.

The product of its digits is 14817600, while the sum is 58.

The square root of 679578745 is about 26068.7311735727. The cubic root of 679578745 is about 879.1843100113.

The spelling of 679578745 in words is "six hundred seventy-nine million, five hundred seventy-eight thousand, seven hundred forty-five".