679937091 has 8 divisors (see below), whose sum is σ = 906705744. Its totient is φ = 453229920.

The previous prime is 679937081. The next prime is 679937101. The reversal of 679937091 is 190739976.

It is an interprime number because it is at equal distance from previous prime (679937081) and next prime (679937101).

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

It is not a de Polignac number, because 679937091 - 2¹⁰ = 679936067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (679937081) 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, 27601 + ... + 46061.

It is an arithmetic number, because the mean of its divisors is an integer number (113338218).

Almost surely, 2^679937091 is an apocalyptic number.

679937091 is a deficient number, since it is larger than the sum of its proper divisors (226768653).

679937091 is a wasteful number, since it uses less digits than its factorization.

679937091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30741.

The product of its (nonzero) digits is 642978, while the sum is 51.

The square root of 679937091 is about 26075.6033678993. The cubic root of 679937091 is about 879.3388159328.

The spelling of 679937091 in words is "six hundred seventy-nine million, nine hundred thirty-seven thousand, ninety-one".