78791367 has 8 divisors (see below), whose sum is σ = 108444160. Its totient is φ = 50833080.

The previous prime is 78791359. The next prime is 78791371. The reversal of 78791367 is 76319787.

It is a happy number.

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

It is not a de Polignac number, because 78791367 - 2³ = 78791359 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 (78791357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423517 + ... + 423702.

It is an arithmetic number, because the mean of its divisors is an integer number (13555520).

Almost surely, 2^78791367 is an apocalyptic number.

78791367 is a deficient number, since it is larger than the sum of its proper divisors (29652793).

78791367 is a wasteful number, since it uses less digits than its factorization.

78791367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847253.

The product of its digits is 444528, while the sum is 48.

The square root of 78791367 is about 8876.4501350484. The cubic root of 78791367 is about 428.7059835759.

The spelling of 78791367 in words is "seventy-eight million, seven hundred ninety-one thousand, three hundred sixty-seven".