2489849 has 2 divisors, whose sum is σ = 2489850. Its totient is φ = 2489848.

The previous prime is 2489831. The next prime is 2489857. The reversal of 2489849 is 9489842.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2418025 + 71824 = 1555^2 + 268^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2489849 is a prime.

It is not a weakly prime, because it can be changed into another prime (2489869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1244924 + 1244925.

It is an arithmetic number, because the mean of its divisors is an integer number (1244925).

2^2489849 is an apocalyptic number.

It is an amenable number.

2489849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2489849 is an equidigital number, since it uses as much as digits as its factorization.

2489849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 44.

The square root of 2489849 is about 1577.9255368996. The cubic root of 2489849 is about 135.5369379559.

The spelling of 2489849 in words is "two million, four hundred eighty-nine thousand, eight hundred forty-nine".