811628948 has 36 divisors (see below), whose sum is σ = 1569459612. Its totient is φ = 364869120.

The previous prime is 811628921. The next prime is 811628953. The reversal of 811628948 is 849826118.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 639179524 + 172449424 = 25282^2 + 13132^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1315136 + ... + 1315752.

Almost surely, 2^811628948 is an apocalyptic number.

It is an amenable number.

811628948 is a deficient number, since it is larger than the sum of its proper divisors (757830664).

811628948 is a wasteful number, since it uses less digits than its factorization.

811628948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292 (or 673 counting only the distinct ones).

The product of its digits is 221184, while the sum is 47.

The square root of 811628948 is about 28489.1022673583. The cubic root of 811628948 is about 932.7942124006.

The spelling of 811628948 in words is "eight hundred eleven million, six hundred twenty-eight thousand, nine hundred forty-eight".