977725479 has 8 divisors (see below), whose sum is σ = 1303928560. Its totient is φ = 651669696.

The previous prime is 977725429. The next prime is 977725487. The reversal of 977725479 is 974527779.

977725479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 977725479 - 2⁸ = 977725223 is a prime.

It is a super-2 number, since 2×977725479² = 1911894224571558882, 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 (977725429) 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, 20272 + ... + 48645.

It is an arithmetic number, because the mean of its divisors is an integer number (162991070).

Almost surely, 2^977725479 is an apocalyptic number.

977725479 is a deficient number, since it is larger than the sum of its proper divisors (326203081).

977725479 is a wasteful number, since it uses less digits than its factorization.

977725479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73649.

The product of its digits is 7779240, while the sum is 57.

The square root of 977725479 is about 31268.6021273737. The cubic root of 977725479 is about 992.5193389164.

The spelling of 977725479 in words is "nine hundred seventy-seven million, seven hundred twenty-five thousand, four hundred seventy-nine".