679906634 has 16 divisors (see below), whose sum is σ = 1160948160. Its totient is φ = 295611360.

The previous prime is 679906613. The next prime is 679906639. The reversal of 679906634 is 436609976.

It is not an unprimeable number, because it can be changed into a prime (679906639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671339 + ... + 672350.

It is an arithmetic number, because the mean of its divisors is an integer number (72559260).

Almost surely, 2^679906634 is an apocalyptic number.

679906634 is a deficient number, since it is larger than the sum of its proper divisors (481041526).

679906634 is a wasteful number, since it uses less digits than its factorization.

679906634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343725.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The square root of 679906634 is about 26075.0193480273. The cubic root of 679906634 is about 879.3256860798.

The spelling of 679906634 in words is "six hundred seventy-nine million, nine hundred six thousand, six hundred thirty-four".