485776831 has 4 divisors (see below), whose sum is σ = 486220752. Its totient is φ = 485332912.

The previous prime is 485776829. The next prime is 485776843. The reversal of 485776831 is 138677584.

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 485776831 - 2¹ = 485776829 is a prime.

It is a super-2 number, since 2×485776831² = 471958259072805122, 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 (485776801) 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, 220315 + ... + 222508.

It is an arithmetic number, because the mean of its divisors is an integer number (121555188).

Almost surely, 2^485776831 is an apocalyptic number.

485776831 is a deficient number, since it is larger than the sum of its proper divisors (443921).

485776831 is a wasteful number, since it uses less digits than its factorization.

485776831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443920.

The product of its digits is 1128960, while the sum is 49.

The square root of 485776831 is about 22040.3455281445. The cubic root of 485776831 is about 786.1020565791.

The spelling of 485776831 in words is "four hundred eighty-five million, seven hundred seventy-six thousand, eight hundred thirty-one".