78604880 has 40 divisors (see below), whose sum is σ = 183584232. Its totient is φ = 31299584.

The previous prime is 78604853. The next prime is 78604891. The reversal of 78604880 is 8840687.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11102224 + 67502656 = 3332^2 + 8216^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16532 + ... + 20748.

Almost surely, 2^78604880 is an apocalyptic number.

It is an amenable number.

78604880 is an abundant number, since it is smaller than the sum of its proper divisors (104979352).

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

78604880 is a wasteful number, since it uses less digits than its factorization.

78604880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463 (or 4457 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 78604880 is about 8865.9393185381. The cubic root of 78604880 is about 428.3674894243.

The spelling of 78604880 in words is "seventy-eight million, six hundred four thousand, eight hundred eighty".