78860226 has 32 divisors (see below), whose sum is σ = 161095680. Its totient is φ = 25728336.

The previous prime is 78860207. The next prime is 78860227. The reversal of 78860226 is 62206887.

It is not an unprimeable number, because it can be changed into a prime (78860227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129615 + ... + 130221.

It is an arithmetic number, because the mean of its divisors is an integer number (5034240).

Almost surely, 2^78860226 is an apocalyptic number.

78860226 is an abundant number, since it is smaller than the sum of its proper divisors (82235454).

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

78860226 is a wasteful number, since it uses less digits than its factorization.

78860226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 78860226 is about 8880.3280344816. The cubic root of 78860226 is about 428.8308351130.

The spelling of 78860226 in words is "seventy-eight million, eight hundred sixty thousand, two hundred twenty-six".