78875456 has 56 divisors (see below), whose sum is σ = 171968160. Its totient is φ = 35596800.

The previous prime is 78875437. The next prime is 78875483. The reversal of 78875456 is 65457887.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127115 + ... + 127733.

It is an arithmetic number, because the mean of its divisors is an integer number (3070860).

Almost surely, 2^78875456 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 78875456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85984080).

78875456 is an abundant number, since it is smaller than the sum of its proper divisors (93092704).

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

78875456 is a wasteful number, since it uses less digits than its factorization.

78875456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 813 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 50.

The square root of 78875456 is about 8881.1855064513. The cubic root of 78875456 is about 428.8584395364.

Subtracting from 78875456 its reverse (65457887), we obtain a square (13417569 = 3663²).

The spelling of 78875456 in words is "seventy-eight million, eight hundred seventy-five thousand, four hundred fifty-six".