7978227 has 8 divisors (see below), whose sum is σ = 10757520. Its totient is φ = 5258880.

The previous prime is 7978211. The next prime is 7978237. The reversal of 7978227 is 7228797.

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

It is not a de Polignac number, because 7978227 - 2⁴ = 7978211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7978207) 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, 14674 + ... + 15207.

It is an arithmetic number, because the mean of its divisors is an integer number (1344690).

Almost surely, 2^7978227 is an apocalyptic number.

7978227 is a deficient number, since it is larger than the sum of its proper divisors (2779293).

7978227 is a wasteful number, since it uses less digits than its factorization.

7978227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29973.

The product of its digits is 98784, while the sum is 42.

The square root of 7978227 is about 2824.5755433339. The cubic root of 7978227 is about 199.8183934786.

The spelling of 7978227 in words is "seven million, nine hundred seventy-eight thousand, two hundred twenty-seven".