679674615 has 16 divisors (see below), whose sum is σ = 1093769568. Its totient is φ = 360396416.

The previous prime is 679674613. The next prime is 679674643. The reversal of 679674615 is 516476976.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 679674615 - 2¹ = 679674613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679674613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128364 + ... + 133553.

It is an arithmetic number, because the mean of its divisors is an integer number (68360598).

Almost surely, 2^679674615 is an apocalyptic number.

679674615 is a deficient number, since it is larger than the sum of its proper divisors (414094953).

679674615 is a wasteful number, since it uses less digits than its factorization.

679674615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262098.

The product of its digits is 1905120, while the sum is 51.

The square root of 679674615 is about 26070.5699017110. The cubic root of 679674615 is about 879.2256510319.

The spelling of 679674615 in words is "six hundred seventy-nine million, six hundred seventy-four thousand, six hundred fifteen".