679086421 has 8 divisors (see below), whose sum is σ = 731808000. Its totient is φ = 626434032.

The previous prime is 679086413. The next prime is 679086433. The reversal of 679086421 is 124680976.

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

It is a cyclic number.

It is not a de Polignac number, because 679086421 - 2³ = 679086413 is a prime.

It is a super-2 number, since 2×679086421² = 922316734373178482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679086451) 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 7 ways as a sum of consecutive naturals, for example, 4080 + ... + 37078.

It is an arithmetic number, because the mean of its divisors is an integer number (91476000).

Almost surely, 2^679086421 is an apocalyptic number.

It is an amenable number.

679086421 is a deficient number, since it is larger than the sum of its proper divisors (52721579).

679086421 is a wasteful number, since it uses less digits than its factorization.

679086421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34595.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 679086421 is about 26059.2866556243. The cubic root of 679086421 is about 878.9719489927.

The spelling of 679086421 in words is "six hundred seventy-nine million, eighty-six thousand, four hundred twenty-one".