2890257 has 4 divisors (see below), whose sum is σ = 3853680. Its totient is φ = 1926836.

The previous prime is 2890231. The next prime is 2890259. The reversal of 2890257 is 7520982.

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 a cyclic number.

It is not a de Polignac number, because 2890257 - 2⁸ = 2890001 is a prime.

It is a D-number.

2890257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2890259) 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, 481707 + ... + 481712.

It is an arithmetic number, because the mean of its divisors is an integer number (963420).

2^2890257 is an apocalyptic number.

It is an amenable number.

2890257 is a deficient number, since it is larger than the sum of its proper divisors (963423).

2890257 is an equidigital number, since it uses as much as digits as its factorization.

2890257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963422.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 2890257 is about 1700.0755865549. The cubic root of 2890257 is about 142.4444350924. Note that the first 4 decimals are identical.

The spelling of 2890257 in words is "two million, eight hundred ninety thousand, two hundred fifty-seven".