78791926 has 8 divisors (see below), whose sum is σ = 118296504. Its totient is φ = 39359760.

The previous prime is 78791903. The next prime is 78791929. The reversal of 78791926 is 62919787.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 78791926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78791929) 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 3 ways as a sum of consecutive naturals, for example, 15295 + ... + 19786.

It is an arithmetic number, because the mean of its divisors is an integer number (14787063).

Almost surely, 2^78791926 is an apocalyptic number.

78791926 is a deficient number, since it is larger than the sum of its proper divisors (39504578).

78791926 is a wasteful number, since it uses less digits than its factorization.

78791926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36206.

The product of its digits is 381024, while the sum is 49.

The square root of 78791926 is about 8876.4816228053. The cubic root of 78791926 is about 428.7069974182.

The spelling of 78791926 in words is "seventy-eight million, seven hundred ninety-one thousand, nine hundred twenty-six".