78352227 has 6 divisors (see below), whose sum is σ = 113175452. Its totient is φ = 52234812.

The previous prime is 78352223. The next prime is 78352247. The reversal of 78352227 is 72225387.

It is a happy number.

It is not a de Polignac number, because 78352227 - 2² = 78352223 is a prime.

It is a super-2 number, since 2×78352227² = 12278142951719058, 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 = 78352191 and 78352200.

It is not an unprimeable number, because it can be changed into a prime (78352223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4352893 + ... + 4352910.

Almost surely, 2^78352227 is an apocalyptic number.

78352227 is a deficient number, since it is larger than the sum of its proper divisors (34823225).

78352227 is a wasteful number, since it uses less digits than its factorization.

78352227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8705809 (or 8705806 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 78352227 is about 8851.6793321945. The cubic root of 78352227 is about 427.9080417192.

The spelling of 78352227 in words is "seventy-eight million, three hundred fifty-two thousand, two hundred twenty-seven".