8531477956 has 9 divisors (see below), whose sum is σ = 14930409711. Its totient is φ = 4265646612.

The previous prime is 8531477951. The next prime is 8531477959. The reversal of 8531477956 is 6597741358.

The square root of 8531477956 is 92366.

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

It is a super-2 number, since 2×8531477956² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8531477897 and 8531477906.

It is not an unprimeable number, because it can be changed into a prime (8531477951) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 161641 + ... + 207823.

Almost surely, 2^8531477956 is an apocalyptic number.

8531477956 is the 92366-th square number.

It is an amenable number.

8531477956 is a deficient number, since it is larger than the sum of its proper divisors (6398931755).

8531477956 is an frugal number, since it uses more digits than its factorization.

8531477956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92370 (or 46185 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 55.

The cubic root of 8531477956 is about 2043.3437055277.

The spelling of 8531477956 in words is "eight billion, five hundred thirty-one million, four hundred seventy-seven thousand, nine hundred fifty-six".