2288657 has 4 divisors (see below), whose sum is σ = 2615616. Its totient is φ = 1961700.

The previous prime is 2288641. The next prime is 2288677. The reversal of 2288657 is 7568822.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7568822 = 2 ⋅3784411.

It is a cyclic number.

It is not a de Polignac number, because 2288657 - 2⁴ = 2288641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2288657.

It is not an unprimeable number, because it can be changed into a prime (2288677) 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, 163469 + ... + 163482.

It is an arithmetic number, because the mean of its divisors is an integer number (653904).

2^2288657 is an apocalyptic number.

It is an amenable number.

2288657 is a deficient number, since it is larger than the sum of its proper divisors (326959).

2288657 is an equidigital number, since it uses as much as digits as its factorization.

2288657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326958.

The product of its digits is 53760, while the sum is 38.

The square root of 2288657 is about 1512.8307902737. The cubic root of 2288657 is about 131.7832569458.

The spelling of 2288657 in words is "two million, two hundred eighty-eight thousand, six hundred fifty-seven".