78841456 has 20 divisors (see below), whose sum is σ = 154110672. Its totient is φ = 39070976.

The previous prime is 78841417. The next prime is 78841471. The reversal of 78841456 is 65414887.

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 3 ways as a sum of consecutive naturals, for example, 19996 + ... + 23611.

Almost surely, 2^78841456 is an apocalyptic number.

It is an amenable number.

78841456 is a deficient number, since it is larger than the sum of its proper divisors (75269216).

78841456 is a wasteful number, since it uses less digits than its factorization.

78841456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43728 (or 43722 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 78841456 is about 8879.2711412593. The cubic root of 78841456 is about 428.7968095385.

It can be divided in two parts, 78841 and 456, that added together give a palindrome (79297).

The spelling of 78841456 in words is "seventy-eight million, eight hundred forty-one thousand, four hundred fifty-six".