2227978 has 8 divisors (see below), whose sum is σ = 3517920. Its totient is φ = 1055340.

The previous prime is 2227963. The next prime is 2228011. The reversal of 2227978 is 8797222.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29278 + ... + 29353.

It is an arithmetic number, because the mean of its divisors is an integer number (439740).

2^2227978 is an apocalyptic number.

2227978 is a deficient number, since it is larger than the sum of its proper divisors (1289942).

2227978 is a wasteful number, since it uses less digits than its factorization.

2227978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58652.

The product of its digits is 28224, while the sum is 37.

The square root of 2227978 is about 1492.6412830952. The cubic root of 2227978 is about 130.6081564479.

It can be divided in two parts, 22 and 27978, that multiplied together give a palindrome (615516).

The spelling of 2227978 in words is "two million, two hundred twenty-seven thousand, nine hundred seventy-eight".