2290687 has 8 divisors (see below), whose sum is σ = 2631200. Its totient is φ = 1953504.

The previous prime is 2290649. The next prime is 2290703. The reversal of 2290687 is 7860922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2290687 - 2¹⁹ = 1766399 is a prime.

It is a Duffinian number.

2290687 is a modest number, since divided by 687 gives 229 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889 + ... + 2317.

It is an arithmetic number, because the mean of its divisors is an integer number (328900).

2^2290687 is an apocalyptic number.

2290687 is a deficient number, since it is larger than the sum of its proper divisors (340513).

2290687 is a wasteful number, since it uses less digits than its factorization.

2290687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 2290687 is about 1513.5015692096. The cubic root of 2290687 is about 131.8222086040.

It can be divided in two parts, 22 and 90687, that added together give a palindrome (90709).

The spelling of 2290687 in words is "two million, two hundred ninety thousand, six hundred eighty-seven".