78802117 has 8 divisors (see below), whose sum is σ = 83457216. Its totient is φ = 74249472.

The previous prime is 78802099. The next prime is 78802147. The reversal of 78802117 is 71120887.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78802117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78802147) by changing a digit.

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, 24028 + ... + 27109.

It is an arithmetic number, because the mean of its divisors is an integer number (10432152).

Almost surely, 2^78802117 is an apocalyptic number.

It is an amenable number.

78802117 is a deficient number, since it is larger than the sum of its proper divisors (4655099).

78802117 is a wasteful number, since it uses less digits than its factorization.

78802117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51227.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 78802117 is about 8877.0556492567. The cubic root of 78802117 is about 428.7254797039.

The spelling of 78802117 in words is "seventy-eight million, eight hundred two thousand, one hundred seventeen".