78295227 has 4 divisors (see below), whose sum is σ = 104393640. Its totient is φ = 52196816.

The previous prime is 78295213. The next prime is 78295229. The reversal of 78295227 is 72259287.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72259287 = 3 ⋅24086429.

It is a cyclic number.

It is not a de Polignac number, because 78295227 - 2⁸ = 78294971 is a prime.

It is a super-2 number, since 2×78295227² = 12260285141963058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78295229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13049202 + ... + 13049207.

It is an arithmetic number, because the mean of its divisors is an integer number (26098410).

Almost surely, 2^78295227 is an apocalyptic number.

78295227 is a deficient number, since it is larger than the sum of its proper divisors (26098413).

78295227 is a wasteful number, since it uses less digits than its factorization.

78295227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26098412.

The product of its digits is 141120, while the sum is 42.

The square root of 78295227 is about 8848.4590183828. The cubic root of 78295227 is about 427.8042511130.

The spelling of 78295227 in words is "seventy-eight million, two hundred ninety-five thousand, two hundred twenty-seven".