78103888 has 20 divisors (see below), whose sum is σ = 151463520. Its totient is φ = 39016544.

The previous prime is 78103877. The next prime is 78103891. The reversal of 78103888 is 88830187.

It is a super-2 number, since 2×78103888² = 12200434641433088, 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, 32223 + ... + 34561.

It is an arithmetic number, because the mean of its divisors is an integer number (7573176).

Almost surely, 2^78103888 is an apocalyptic number.

It is an amenable number.

78103888 is a deficient number, since it is larger than the sum of its proper divisors (73359632).

78103888 is a wasteful number, since it uses less digits than its factorization.

78103888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434 (or 4428 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 43.

The square root of 78103888 is about 8837.6404090685. The cubic root of 78103888 is about 427.4554754536.

The spelling of 78103888 in words is "seventy-eight million, one hundred three thousand, eight hundred eighty-eight".