2498739 has 4 divisors (see below), whose sum is σ = 3331656. Its totient is φ = 1665824.

The previous prime is 2498737. The next prime is 2498753. The reversal of 2498739 is 9378942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2498739 - 2¹ = 2498737 is a prime.

It is an Ulam number.

It is a D-number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 2498739.

It is not an unprimeable number, because it can be changed into a prime (2498731) 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, 416454 + ... + 416459.

It is an arithmetic number, because the mean of its divisors is an integer number (832914).

2^2498739 is an apocalyptic number.

2498739 is a deficient number, since it is larger than the sum of its proper divisors (832917).

2498739 is an equidigital number, since it uses as much as digits as its factorization.

2498739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832916.

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

The square root of 2498739 is about 1580.7400165745. The cubic root of 2498739 is about 135.6980577879.

The spelling of 2498739 in words is "two million, four hundred ninety-eight thousand, seven hundred thirty-nine".