78196896 has 36 divisors (see below), whose sum is σ = 222373242. Its totient is φ = 26065536.

The previous prime is 78196871. The next prime is 78196901. The reversal of 78196896 is 69869187.

It can be written as a sum of positive squares in only one way, i.e., 77792400 + 404496 = 8820^2 + 636^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×78196896² = 12229509088069632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135471 + ... + 136046.

Almost surely, 2^78196896 is an apocalyptic number.

It is an amenable number.

78196896 is an abundant number, since it is smaller than the sum of its proper divisors (144176346).

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

78196896 is a wasteful number, since it uses less digits than its factorization.

78196896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271533 (or 271522 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 78196896 is about 8842.9008814981. The cubic root of 78196896 is about 427.6250829222.

The spelling of 78196896 in words is "seventy-eight million, one hundred ninety-six thousand, eight hundred ninety-six".