78103880 has 32 divisors (see below), whose sum is σ = 181405440. Its totient is φ = 30233280.

The previous prime is 78103877. The next prime is 78103891. The reversal of 78103880 is 8830187.

It is a super-2 number, since 2×78103880² = 12200432142108800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78103880.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30254 + ... + 32733.

It is an arithmetic number, because the mean of its divisors is an integer number (5668920).

Almost surely, 2^78103880 is an apocalyptic number.

It is an amenable number.

78103880 is an abundant number, since it is smaller than the sum of its proper divisors (103301560).

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

78103880 is a wasteful number, since it uses less digits than its factorization.

78103880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63029 (or 63025 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 78103880 is about 8837.6399564590. The cubic root of 78103880 is about 427.4554608592.

The spelling of 78103880 in words is "seventy-eight million, one hundred three thousand, eight hundred eighty".