78100227 has 24 divisors (see below), whose sum is σ = 122922800. Its totient is φ = 48999168.

The previous prime is 78100207. The next prime is 78100271. The reversal of 78100227 is 72200187.

It is not a de Polignac number, because 78100227 - 2⁶ = 78100163 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78100227.

It is not an unprimeable number, because it can be changed into a prime (78100207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2799 + ... + 12807.

Almost surely, 2^78100227 is an apocalyptic number.

78100227 is a deficient number, since it is larger than the sum of its proper divisors (44822573).

78100227 is a wasteful number, since it uses less digits than its factorization.

78100227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10052 (or 10029 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 78100227 is about 8837.4332812192. The cubic root of 78100227 is about 427.4487965759.

The spelling of 78100227 in words is "seventy-eight million, one hundred thousand, two hundred twenty-seven".