2228997 has 4 divisors (see below), whose sum is σ = 2972000. Its totient is φ = 1485996.

The previous prime is 2228987. The next prime is 2229037. The reversal of 2228997 is 7998222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2228997 - 2⁴ = 2228981 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228927) 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, 371497 + ... + 371502.

It is an arithmetic number, because the mean of its divisors is an integer number (743000).

2^2228997 is an apocalyptic number.

It is an amenable number.

2228997 is a deficient number, since it is larger than the sum of its proper divisors (743003).

2228997 is an equidigital number, since it uses as much as digits as its factorization.

2228997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743002.

The product of its digits is 36288, while the sum is 39.

The square root of 2228997 is about 1492.9825852970. The cubic root of 2228997 is about 130.6280652959.

The spelling of 2228997 in words is "two million, two hundred twenty-eight thousand, nine hundred ninety-seven".