679604805 has 48 divisors (see below), whose sum is σ = 1340966016. Its totient is φ = 315173760.

The previous prime is 679604797. The next prime is 679604837. The reversal of 679604805 is 508406976.

It is not a de Polignac number, because 679604805 - 2³ = 679604797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18462 + ... + 41231.

It is an arithmetic number, because the mean of its divisors is an integer number (27936792).

Almost surely, 2^679604805 is an apocalyptic number.

It is an amenable number.

679604805 is a deficient number, since it is larger than the sum of its proper divisors (661361211).

679604805 is a wasteful number, since it uses less digits than its factorization.

679604805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59738 (or 59735 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 679604805 is about 26069.2310013165. The cubic root of 679604805 is about 879.1955479782.

The spelling of 679604805 in words is "six hundred seventy-nine million, six hundred four thousand, eight hundred five".