817947052 has 24 divisors (see below), whose sum is σ = 1548450176. Its totient is φ = 375815808.

The previous prime is 817947047. The next prime is 817947071. The reversal of 817947052 is 250749718.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23673 + ... + 46864.

Almost surely, 2^817947052 is an apocalyptic number.

It is an amenable number.

817947052 is a deficient number, since it is larger than the sum of its proper divisors (730503124).

817947052 is a wasteful number, since it uses less digits than its factorization.

817947052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70777 (or 70775 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 817947052 is about 28599.7736354678. The cubic root of 817947052 is about 935.2083960738.

The spelling of 817947052 in words is "eight hundred seventeen million, nine hundred forty-seven thousand, fifty-two".