2251847 has 4 divisors (see below), whose sum is σ = 2425080. Its totient is φ = 2078616.

The previous prime is 2251841. The next prime is 2251849. The reversal of 2251847 is 7481522.

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

It is a cyclic number.

It is not a de Polignac number, because 2251847 - 2⁸ = 2251591 is a prime.

It is a super-2 number, since 2×2251847² = 10141629822818, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁷ + 2²¹ + 5⁵ + 1 + 8⁵ + 4⁵ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251841) 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, 86597 + ... + 86622.

It is an arithmetic number, because the mean of its divisors is an integer number (606270).

2^2251847 is an apocalyptic number.

2251847 is a deficient number, since it is larger than the sum of its proper divisors (173233).

2251847 is a wasteful number, since it uses less digits than its factorization.

2251847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173232.

The product of its digits is 4480, while the sum is 29.

The square root of 2251847 is about 1500.6155403700. The cubic root of 2251847 is about 131.0729155286.

The spelling of 2251847 in words is "two million, two hundred fifty-one thousand, eight hundred forty-seven".