78988227 has 8 divisors (see below), whose sum is σ = 105415440. Its totient is φ = 52609920.

The previous prime is 78988223. The next prime is 78988277. The reversal of 78988227 is 72288987.

It is a happy number.

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

It is not a de Polignac number, because 78988227 - 2² = 78988223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78988227.

It is not an unprimeable number, because it can be changed into a prime (78988223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8274 + ... + 15047.

It is an arithmetic number, because the mean of its divisors is an integer number (13176930).

Almost surely, 2^78988227 is an apocalyptic number.

78988227 is a deficient number, since it is larger than the sum of its proper divisors (26427213).

78988227 is a wasteful number, since it uses less digits than its factorization.

78988227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24453.

The product of its digits is 903168, while the sum is 51.

The square root of 78988227 is about 8887.5321096466. The cubic root of 78988227 is about 429.0627268486.

The spelling of 78988227 in words is "seventy-eight million, nine hundred eighty-eight thousand, two hundred twenty-seven".