2258647 has 6 divisors (see below), whose sum is σ = 2300064. Its totient is φ = 2217960.

The previous prime is 2258639. The next prime is 2258651. The reversal of 2258647 is 7468522.

It is not a de Polignac number, because 2258647 - 2³ = 2258639 is a prime.

It is a Duffinian number.

2258647 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3418 + ... + 4024.

It is an arithmetic number, because the mean of its divisors is an integer number (383344).

2^2258647 is an apocalyptic number.

2258647 is a deficient number, since it is larger than the sum of its proper divisors (41417).

2258647 is an frugal number, since it uses more digits than its factorization.

2258647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729 (or 668 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 2258647 is about 1502.8795693601. The cubic root of 2258647 is about 131.2047184688.

The spelling of 2258647 in words is "two million, two hundred fifty-eight thousand, six hundred forty-seven".