979172007 has 16 divisors (see below), whose sum is σ = 1436859648. Its totient is φ = 588183680.

The previous prime is 979172003. The next prime is 979172027. The reversal of 979172007 is 700271979.

It is a cyclic number.

It is not a de Polignac number, because 979172007 - 2² = 979172003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 979172007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979172003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127563 + ... + 135020.

It is an arithmetic number, because the mean of its divisors is an integer number (89803728).

Almost surely, 2^979172007 is an apocalyptic number.

979172007 is a deficient number, since it is larger than the sum of its proper divisors (457687641).

979172007 is a wasteful number, since it uses less digits than its factorization.

979172007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262710.

The product of its (nonzero) digits is 55566, while the sum is 42.

The square root of 979172007 is about 31291.7242573815. The cubic root of 979172007 is about 993.0085694799.

The spelling of 979172007 in words is "nine hundred seventy-nine million, one hundred seventy-two thousand, seven".