2872257 has 4 divisors (see below), whose sum is σ = 3829680. Its totient is φ = 1914836.

The previous prime is 2872237. The next prime is 2872277. The reversal of 2872257 is 7522782.

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 an interprime number because it is at equal distance from previous prime (2872237) and next prime (2872277).

It is a cyclic number.

It is not a de Polignac number, because 2872257 - 2¹⁰ = 2871233 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2872237) 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, 478707 + ... + 478712.

It is an arithmetic number, because the mean of its divisors is an integer number (957420).

2^2872257 is an apocalyptic number.

It is an amenable number.

2872257 is a deficient number, since it is larger than the sum of its proper divisors (957423).

2872257 is an equidigital number, since it uses as much as digits as its factorization.

2872257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957422.

The product of its digits is 15680, while the sum is 33.

The square root of 2872257 is about 1694.7734361855. The cubic root of 2872257 is about 142.1481129966.

The spelling of 2872257 in words is "two million, eight hundred seventy-two thousand, two hundred fifty-seven".