2249997 has 8 divisors (see below), whose sum is σ = 3008544. Its totient is φ = 1495728.

The previous prime is 2249987. The next prime is 2250013. The reversal of 2249997 is 7999422.

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

It is not a de Polignac number, because 2249997 - 2⁴ = 2249981 is a prime.

2249997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2249917) 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, 483 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (376068).

2^2249997 is an apocalyptic number.

It is an amenable number.

2249997 is a deficient number, since it is larger than the sum of its proper divisors (758547).

2249997 is a wasteful number, since it uses less digits than its factorization.

2249997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139.

The product of its digits is 81648, while the sum is 42.

The square root of 2249997 is about 1499.9989999997. The cubic root of 2249997 is about 131.0370114717.

It can be divided in two parts, 2 and 249997, that multiplied together give a palindrome (499994).

The spelling of 2249997 in words is "two million, two hundred forty-nine thousand, nine hundred ninety-seven".