78027227 has 4 divisors (see below), whose sum is σ = 78065496. Its totient is φ = 77988960.

The previous prime is 78027211. The next prime is 78027283. The reversal of 78027227 is 72272087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72272087 = 613 ⋅117899.

It is a cyclic number.

It is not a de Polignac number, because 78027227 - 2⁴ = 78027211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78027727) 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, 15893 + ... + 20214.

It is an arithmetic number, because the mean of its divisors is an integer number (19516374).

Almost surely, 2^78027227 is an apocalyptic number.

78027227 is a deficient number, since it is larger than the sum of its proper divisors (38269).

78027227 is a wasteful number, since it uses less digits than its factorization.

78027227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38268.

The product of its (nonzero) digits is 21952, while the sum is 35.

The square root of 78027227 is about 8833.3021571777. The cubic root of 78027227 is about 427.3155767787.

The spelling of 78027227 in words is "seventy-eight million, twenty-seven thousand, two hundred twenty-seven".