2247739 has 8 divisors (see below), whose sum is σ = 2477552. Its totient is φ = 2026080.

The previous prime is 2247737. The next prime is 2247793. The reversal of 2247739 is 9377422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2247739 - 2¹ = 2247737 is a prime.

It is a super-2 number, since 2×2247739² = 10104661224242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2247733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452 + ... + 2569.

It is an arithmetic number, because the mean of its divisors is an integer number (309694).

2^2247739 is an apocalyptic number.

2247739 is a deficient number, since it is larger than the sum of its proper divisors (229813).

2247739 is a wasteful number, since it uses less digits than its factorization.

2247739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077.

The product of its digits is 21168, while the sum is 34.

The square root of 2247739 is about 1499.2461439003. The cubic root of 2247739 is about 130.9931624347.

The spelling of 2247739 in words is "two million, two hundred forty-seven thousand, seven hundred thirty-nine".