2247979 has 4 divisors (see below), whose sum is σ = 2256984. Its totient is φ = 2238976.

The previous prime is 2247977. The next prime is 2247991. The reversal of 2247979 is 9797422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2247979 - 2¹ = 2247977 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

2247979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2247977) 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, 4117 + ... + 4630.

It is an arithmetic number, because the mean of its divisors is an integer number (564246).

2^2247979 is an apocalyptic number.

2247979 is a deficient number, since it is larger than the sum of its proper divisors (9005).

2247979 is an equidigital number, since it uses as much as digits as its factorization.

2247979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9004.

The product of its digits is 63504, while the sum is 40.

The square root of 2247979 is about 1499.3261819898. The cubic root of 2247979 is about 130.9978244885.

The spelling of 2247979 in words is "two million, two hundred forty-seven thousand, nine hundred seventy-nine".