78817468 has 6 divisors (see below), whose sum is σ = 137930576. Its totient is φ = 39408732.

The previous prime is 78817441. The next prime is 78817477. The reversal of 78817468 is 86471887.

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 as a sum of consecutive naturals, namely, 9852180 + ... + 9852187.

Almost surely, 2^78817468 is an apocalyptic number.

It is an amenable number.

78817468 is a deficient number, since it is larger than the sum of its proper divisors (59113108).

78817468 is a wasteful number, since it uses less digits than its factorization.

78817468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19704371 (or 19704369 counting only the distinct ones).

The product of its digits is 602112, while the sum is 49.

The square root of 78817468 is about 8877.9202519509. The cubic root of 78817468 is about 428.7533171013.

The spelling of 78817468 in words is "seventy-eight million, eight hundred seventeen thousand, four hundred sixty-eight".