78913456 has 40 divisors (see below), whose sum is σ = 162739584. Its totient is φ = 36940800.

The previous prime is 78913433. The next prime is 78913487. The reversal of 78913456 is 65431987.

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, 60006 + ... + 61306.

Almost surely, 2^78913456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78913456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81369792).

78913456 is an abundant number, since it is smaller than the sum of its proper divisors (83826128).

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

78913456 is a wasteful number, since it uses less digits than its factorization.

78913456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549 (or 1543 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The square root of 78913456 is about 8883.3246028725. The cubic root of 78913456 is about 428.9272991671.

The spelling of 78913456 in words is "seventy-eight million, nine hundred thirteen thousand, four hundred fifty-six".