2290887 has 12 divisors (see below), whose sum is σ = 3483480. Its totient is φ = 1446768.

The previous prime is 2290861. The next prime is 2290889. The reversal of 2290887 is 7880922.

It is not a de Polignac number, because 2290887 - 2¹⁰ = 2289863 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6528 + ... + 6869.

It is an arithmetic number, because the mean of its divisors is an integer number (290290).

2^2290887 is an apocalyptic number.

2290887 is a deficient number, since it is larger than the sum of its proper divisors (1192593).

2290887 is a wasteful number, since it uses less digits than its factorization.

2290887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13422 (or 13419 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2290887 is about 1513.5676397175. The cubic root of 2290887 is about 131.8260449603.

It can be divided in two parts, 22 and 90887, that added together give a palindrome (90909).

The spelling of 2290887 in words is "two million, two hundred ninety thousand, eight hundred eighty-seven".