78608100 has 36 divisors (see below), whose sum is σ = 227440304. Its totient is φ = 20962080.

The previous prime is 78608099. The next prime is 78608129. The reversal of 78608100 is 180687.

It is a super-2 number, since 2×78608100² = 12358466771220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130714 + ... + 131313.

Almost surely, 2^78608100 is an apocalyptic number.

It is an amenable number.

78608100 is an abundant number, since it is smaller than the sum of its proper divisors (148832204).

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

78608100 is a wasteful number, since it uses less digits than its factorization.

78608100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262044 (or 262037 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 78608100 is about 8866.1209105223. The cubic root of 78608100 is about 428.3733386137.

Adding to 78608100 its reverse (180687), we get a palindrome (78788787).

The spelling of 78608100 in words is "seventy-eight million, six hundred eight thousand, one hundred".