2247815 has 4 divisors (see below), whose sum is σ = 2697384. Its totient is φ = 1798248.

The previous prime is 2247811. The next prime is 2247851. The reversal of 2247815 is 5187422.

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 2247815 - 2² = 2247811 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 2¹⁷ + 4⁷ + 7² + 8⁷ + 1 + 5⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2247811) 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, 224777 + ... + 224786.

It is an arithmetic number, because the mean of its divisors is an integer number (674346).

2^2247815 is an apocalyptic number.

2247815 is a deficient number, since it is larger than the sum of its proper divisors (449569).

2247815 is an equidigital number, since it uses as much as digits as its factorization.

2247815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449568.

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

The square root of 2247815 is about 1499.2714897576. The cubic root of 2247815 is about 130.9946387876.

The spelling of 2247815 in words is "two million, two hundred forty-seven thousand, eight hundred fifteen".