2290647 has 4 divisors (see below), whose sum is σ = 3054200. Its totient is φ = 1527096.

The previous prime is 2290643. The next prime is 2290649. The reversal of 2290647 is 7460922.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2290647 - 2² = 2290643 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290643) 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, 381772 + ... + 381777.

It is an arithmetic number, because the mean of its divisors is an integer number (763550).

2^2290647 is an apocalyptic number.

2290647 is a deficient number, since it is larger than the sum of its proper divisors (763553).

2290647 is an equidigital number, since it uses as much as digits as its factorization.

2290647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763552.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 2290647 is about 1513.4883547619. The cubic root of 2290647 is about 131.8214413059.

The spelling of 2290647 in words is "two million, two hundred ninety thousand, six hundred forty-seven".