78701228 has 24 divisors (see below), whose sum is σ = 147891744. Its totient is φ = 36512000.

The previous prime is 78701213. The next prime is 78701243. The reversal of 78701228 is 82210787.

It is an interprime number because it is at equal distance from previous prime (78701213) and next prime (78701243).

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, 3323 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (6162156).

Almost surely, 2^78701228 is an apocalyptic number.

It is an amenable number.

78701228 is a deficient number, since it is larger than the sum of its proper divisors (69190516).

78701228 is a wasteful number, since it uses less digits than its factorization.

78701228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16393 (or 16391 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 78701228 is about 8871.3712581540. The cubic root of 78701228 is about 428.5424382718.

The spelling of 78701228 in words is "seventy-eight million, seven hundred one thousand, two hundred twenty-eight".