78768792 has 24 divisors (see below), whose sum is σ = 213332340. Its totient is φ = 26256240.

The previous prime is 78768791. The next prime is 78768793. The reversal of 78768792 is 29786787.

It is an interprime number because it is at equal distance from previous prime (78768791) and next prime (78768793).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78768791) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 546934 + ... + 547077.

Almost surely, 2^78768792 is an apocalyptic number.

78768792 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78768792 is an abundant number, since it is smaller than the sum of its proper divisors (134563548).

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

78768792 is a wasteful number, since it uses less digits than its factorization.

78768792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094023 (or 1094016 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 78768792 is about 8875.1784207417. The cubic root of 78768792 is about 428.6650359340.

The spelling of 78768792 in words is "seventy-eight million, seven hundred sixty-eight thousand, seven hundred ninety-two".