2489739 has 12 divisors (see below), whose sum is σ = 3861864. Its totient is φ = 1422624.

The previous prime is 2489719. The next prime is 2489749. The reversal of 2489739 is 9379842.

It is not a de Polignac number, because 2489739 - 2⁷ = 2489611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2489739.

It is not an unprimeable number, because it can be changed into a prime (2489719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8322 + ... + 8615.

It is an arithmetic number, because the mean of its divisors is an integer number (321822).

2^2489739 is an apocalyptic number.

2489739 is a deficient number, since it is larger than the sum of its proper divisors (1372125).

2489739 is a wasteful number, since it uses less digits than its factorization.

2489739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16954 (or 16947 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 2489739 is about 1577.8906806240. The cubic root of 2489739 is about 135.5349419470.

The spelling of 2489739 in words is "two million, four hundred eighty-nine thousand, seven hundred thirty-nine".