811247048 has 16 divisors (see below), whose sum is σ = 1521877680. Its totient is φ = 405413008.

The previous prime is 811247027. The next prime is 811247057. The reversal of 811247048 is 840742118.

It is a junction number, because it is equal to n+sod(n) for n = 811246999 and 811247017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9290 + ... + 41337.

It is an arithmetic number, because the mean of its divisors is an integer number (95117355).

Almost surely, 2^811247048 is an apocalyptic number.

It is an amenable number.

811247048 is a deficient number, since it is larger than the sum of its proper divisors (710630632).

811247048 is a wasteful number, since it uses less digits than its factorization.

811247048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52636 (or 52632 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 811247048 is about 28482.3989158217. The cubic root of 811247048 is about 932.6478852730.

The spelling of 811247048 in words is "eight hundred eleven million, two hundred forty-seven thousand, forty-eight".