679425531 has 8 divisors (see below), whose sum is σ = 908267520. Its totient is φ = 451766952.

The previous prime is 679425529. The next prime is 679425563. The reversal of 679425531 is 135524976.

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

It is not a de Polignac number, because 679425531 - 2¹ = 679425529 is a prime.

It is a super-2 number, since 2×679425531² = 923238104349263922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (679425581) 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, 294511 + ... + 296808.

It is an arithmetic number, because the mean of its divisors is an integer number (113533440).

Almost surely, 2^679425531 is an apocalyptic number.

679425531 is a deficient number, since it is larger than the sum of its proper divisors (228841989).

679425531 is a wasteful number, since it uses less digits than its factorization.

679425531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591705.

The product of its digits is 226800, while the sum is 42.

The square root of 679425531 is about 26065.7923531973. The cubic root of 679425531 is about 879.1182330628.

The spelling of 679425531 in words is "six hundred seventy-nine million, four hundred twenty-five thousand, five hundred thirty-one".