78884166 has 16 divisors (see below), whose sum is σ = 157878000. Its totient is φ = 26276448.

The previous prime is 78884161. The next prime is 78884207. The reversal of 78884166 is 66148887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78884161) 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, 7060 + ... + 14408.

It is an arithmetic number, because the mean of its divisors is an integer number (9867375).

Almost surely, 2^78884166 is an apocalyptic number.

78884166 is an abundant number, since it is smaller than the sum of its proper divisors (78993834).

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

78884166 is a wasteful number, since it uses less digits than its factorization.

78884166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143.

The product of its digits is 516096, while the sum is 48.

The square root of 78884166 is about 8881.6758553777. The cubic root of 78884166 is about 428.8742248420.

The spelling of 78884166 in words is "seventy-eight million, eight hundred eighty-four thousand, one hundred sixty-six".