78103008 has 48 divisors (see below), whose sum is σ = 227802960. Its totient is φ = 26034048.

The previous prime is 78102971. The next prime is 78103021. The reversal of 78103008 is 80030187.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×78103008² = 12200159717296128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 44335 + ... + 46062.

It is an arithmetic number, because the mean of its divisors is an integer number (4745895).

Almost surely, 2^78103008 is an apocalyptic number.

It is an amenable number.

78103008 is an abundant number, since it is smaller than the sum of its proper divisors (149699952).

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

78103008 is a wasteful number, since it uses less digits than its factorization.

78103008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90416 (or 90402 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 78103008 is about 8837.5906218833. The cubic root of 78103008 is about 427.4538700609.

The spelling of 78103008 in words is "seventy-eight million, one hundred three thousand, eight".