78794766 has 12 divisors (see below), whose sum is σ = 170722032. Its totient is φ = 26264916.

The previous prime is 78794761. The next prime is 78794773. The reversal of 78794766 is 66749787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78794761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2188726 + ... + 2188761.

It is an arithmetic number, because the mean of its divisors is an integer number (14226836).

Almost surely, 2^78794766 is an apocalyptic number.

78794766 is an abundant number, since it is smaller than the sum of its proper divisors (91927266).

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

78794766 is a wasteful number, since it uses less digits than its factorization.

78794766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377495 (or 4377492 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 78794766 is about 8876.6415946573. The cubic root of 78794766 is about 428.7121481712.

The spelling of 78794766 in words is "seventy-eight million, seven hundred ninety-four thousand, seven hundred sixty-six".