78804966 has 8 divisors (see below), whose sum is σ = 157609944. Its totient is φ = 26268320.

The previous prime is 78804953. The next prime is 78804983. The reversal of 78804966 is 66940887.

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

78804966 is an admirable number.

It is a super-2 number, since 2×78804966² = 12420445332522312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6567075 + ... + 6567086.

It is an arithmetic number, because the mean of its divisors is an integer number (19701243).

Almost surely, 2^78804966 is an apocalyptic number.

78804966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78804966 is a wasteful number, since it uses less digits than its factorization.

78804966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13134166.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 78804966 is about 8877.2161176801. The cubic root of 78804966 is about 428.7306463340.

The spelling of 78804966 in words is "seventy-eight million, eight hundred four thousand, nine hundred sixty-six".