8877973729 has 9 divisors (see below), whose sum is σ = 9036656787. Its totient is φ = 8722034664.

The previous prime is 8877973723. The next prime is 8877973739. The reversal of 8877973729 is 9273797788.

The square root of 8877973729 is 94223.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1779574225 + 7098399504 = 42185^2 + 84252^2 .

It is not a de Polignac number, because 8877973729 - 2³ = 8877973721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8877973721) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5558359 + ... + 5559955.

Almost surely, 2^8877973729 is an apocalyptic number.

8877973729 is the 94223-rd square number.

8877973729 is the 47112-nd centered octagonal number.

It is an amenable number.

8877973729 is a deficient number, since it is larger than the sum of its proper divisors (158683058).

8877973729 is an frugal number, since it uses more digits than its factorization.

8877973729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312 (or 1656 counting only the distinct ones).

The product of its digits is 74680704, while the sum is 67.

The cubic root of 8877973729 is about 2070.6400915147.

The spelling of 8877973729 in words is "eight billion, eight hundred seventy-seven million, nine hundred seventy-three thousand, seven hundred twenty-nine".