679431136 has 12 divisors (see below), whose sum is σ = 1337630112. Its totient is φ = 339715552.

The previous prime is 679431083. The next prime is 679431139. The reversal of 679431136 is 631134976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679431139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616080 + ... + 10616143.

It is an arithmetic number, because the mean of its divisors is an integer number (111469176).

Almost surely, 2^679431136 is an apocalyptic number.

It is an amenable number.

679431136 is a deficient number, since it is larger than the sum of its proper divisors (658198976).

679431136 is a wasteful number, since it uses less digits than its factorization.

679431136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21232233 (or 21232225 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 679431136 is about 26065.8998693696. The cubic root of 679431136 is about 879.1206505189.

The spelling of 679431136 in words is "six hundred seventy-nine million, four hundred thirty-one thousand, one hundred thirty-six".