78796109 has 8 divisors (see below), whose sum is σ = 90223488. Its totient is φ = 67411440.

The previous prime is 78796073. The next prime is 78796147. The reversal of 78796109 is 90169787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78796109 - 2²⁴ = 62018893 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 (78796169) 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 7 ways as a sum of consecutive naturals, for example, 6617 + ... + 14190.

It is an arithmetic number, because the mean of its divisors is an integer number (11277936).

Almost surely, 2^78796109 is an apocalyptic number.

It is an amenable number.

78796109 is a deficient number, since it is larger than the sum of its proper divisors (11427379).

78796109 is a wasteful number, since it uses less digits than its factorization.

78796109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21355.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 78796109 is about 8876.7172423143. The cubic root of 78796109 is about 428.7145838539.

The spelling of 78796109 in words is "seventy-eight million, seven hundred ninety-six thousand, one hundred nine".