2247649 has 4 divisors (see below), whose sum is σ = 2281264. Its totient is φ = 2214036.

The previous prime is 2247611. The next prime is 2247659. The reversal of 2247649 is 9467422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2247649 - 2⁷ = 2247521 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2247659) 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, 16707 + ... + 16840.

It is an arithmetic number, because the mean of its divisors is an integer number (570316).

2^2247649 is an apocalyptic number.

It is an amenable number.

2247649 is a deficient number, since it is larger than the sum of its proper divisors (33615).

2247649 is an equidigital number, since it uses as much as digits as its factorization.

2247649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33614.

The product of its digits is 24192, while the sum is 34.

The square root of 2247649 is about 1499.2161285152. The cubic root of 2247649 is about 130.9914140790.

The spelling of 2247649 in words is "two million, two hundred forty-seven thousand, six hundred forty-nine".