2493689 has 12 divisors (see below), whose sum is σ = 2820132. Its totient is φ = 2201760.

The previous prime is 2493653. The next prime is 2493707. The reversal of 2493689 is 9863942.

It is a happy number.

2493689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1210000 + 1283689 = 1100^2 + 1133^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2493689 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2493629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4199 + ... + 4755.

It is an arithmetic number, because the mean of its divisors is an integer number (235011).

2^2493689 is an apocalyptic number.

It is an amenable number.

2493689 is a deficient number, since it is larger than the sum of its proper divisors (326443).

2493689 is a wasteful number, since it uses less digits than its factorization.

2493689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 605 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 2493689 is about 1579.1418555659. The cubic root of 2493689 is about 135.6065799982.

The spelling of 2493689 in words is "two million, four hundred ninety-three thousand, six hundred eighty-nine".