78112227 has 8 divisors (see below), whose sum is σ = 104535040. Its totient is φ = 51882120.

The previous prime is 78112201. The next prime is 78112231. The reversal of 78112227 is 72221187.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-78112227 is a prime.

It is a super-2 number, since 2×78112227² = 12203040013799058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78112194 and 78112203.

It is not an unprimeable number, because it can be changed into a prime (78112427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47227 + ... + 48852.

It is an arithmetic number, because the mean of its divisors is an integer number (13066880).

Almost surely, 2^78112227 is an apocalyptic number.

78112227 is a deficient number, since it is larger than the sum of its proper divisors (26422813).

78112227 is a wasteful number, since it uses less digits than its factorization.

78112227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96353.

The product of its digits is 3136, while the sum is 30.

The square root of 78112227 is about 8838.1121853029. The cubic root of 78112227 is about 427.4706877751.

The spelling of 78112227 in words is "seventy-eight million, one hundred twelve thousand, two hundred twenty-seven".