979657723 has 4 divisors (see below), whose sum is σ = 1068717528. Its totient is φ = 890597920.

The previous prime is 979657711. The next prime is 979657747. The reversal of 979657723 is 327756979.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 979657723 - 2¹⁷ = 979526651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979657703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44529886 + ... + 44529907.

It is an arithmetic number, because the mean of its divisors is an integer number (267179382).

Almost surely, 2^979657723 is an apocalyptic number.

979657723 is a deficient number, since it is larger than the sum of its proper divisors (89059805).

979657723 is a wasteful number, since it uses less digits than its factorization.

979657723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89059804.

The product of its digits is 5000940, while the sum is 55.

The square root of 979657723 is about 31299.4843887244. The cubic root of 979657723 is about 993.1727355364.

The spelling of 979657723 in words is "nine hundred seventy-nine million, six hundred fifty-seven thousand, seven hundred twenty-three".