979692091 has 8 divisors (see below), whose sum is σ = 1145686784. Its totient is φ = 820207080.

The previous prime is 979692067. The next prime is 979692127. The reversal of 979692091 is 190296979.

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

It is not a de Polignac number, because 979692091 - 2⁵ = 979692059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979698091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1627095 + ... + 1627696.

It is an arithmetic number, because the mean of its divisors is an integer number (143210848).

Almost surely, 2^979692091 is an apocalyptic number.

979692091 is a deficient number, since it is larger than the sum of its proper divisors (165994693).

979692091 is a wasteful number, since it uses less digits than its factorization.

979692091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254841.

The product of its (nonzero) digits is 551124, while the sum is 52.

The square root of 979692091 is about 31300.0334025381. The cubic root of 979692091 is about 993.1843494435.

The spelling of 979692091 in words is "nine hundred seventy-nine million, six hundred ninety-two thousand, ninety-one".