78837493 has 16 divisors (see below), whose sum is σ = 92358144. Its totient is φ = 65902320.

The previous prime is 78837487. The next prime is 78837523. The reversal of 78837493 is 39473887.

It is a cyclic number.

It is not a de Polignac number, because 78837493 - 2⁵ = 78837461 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 (78837893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49398 + ... + 50968.

It is an arithmetic number, because the mean of its divisors is an integer number (5772384).

Almost surely, 2^78837493 is an apocalyptic number.

It is an amenable number.

78837493 is a deficient number, since it is larger than the sum of its proper divisors (13520651).

78837493 is a wasteful number, since it uses less digits than its factorization.

78837493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752.

The product of its digits is 1016064, while the sum is 49.

The square root of 78837493 is about 8879.0479782463. The cubic root of 78837493 is about 428.7896248656.

It can be divided in two parts, 7883 and 7493, that added together give a square (15376 = 124²).

The spelling of 78837493 in words is "seventy-eight million, eight hundred thirty-seven thousand, four hundred ninety-three".