2247391 has 4 divisors (see below), whose sum is σ = 2274552. Its totient is φ = 2220232.

The previous prime is 2247389. The next prime is 2247397. The reversal of 2247391 is 1937422.

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 2247391 - 2¹ = 2247389 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2247397) 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, 13456 + ... + 13621.

It is an arithmetic number, because the mean of its divisors is an integer number (568638).

2^2247391 is an apocalyptic number.

2247391 is a deficient number, since it is larger than the sum of its proper divisors (27161).

2247391 is an equidigital number, since it uses as much as digits as its factorization.

2247391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27160.

The product of its digits is 3024, while the sum is 28.

The square root of 2247391 is about 1499.1300810804. The cubic root of 2247391 is about 130.9864018673.

The spelling of 2247391 in words is "two million, two hundred forty-seven thousand, three hundred ninety-one".