817652056 has 32 divisors (see below), whose sum is σ = 1666481040. Its totient is φ = 373845888.

The previous prime is 817652029. The next prime is 817652083. The reversal of 817652056 is 650256718.

It is an interprime number because it is at equal distance from previous prime (817652029) and next prime (817652083).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 25611 + ... + 47866.

Almost surely, 2^817652056 is an apocalyptic number.

It is an amenable number.

817652056 is an abundant number, since it is smaller than the sum of its proper divisors (848828984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

817652056 is a wasteful number, since it uses less digits than its factorization.

817652056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73603 (or 73599 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 817652056 is about 28594.6158568357. The cubic root of 817652056 is about 935.0959536249.

The spelling of 817652056 in words is "eight hundred seventeen million, six hundred fifty-two thousand, fifty-six".