2493639 has 8 divisors (see below), whose sum is σ = 3694320. Its totient is φ = 1662408.

The previous prime is 2493629. The next prime is 2493643. The reversal of 2493639 is 9363942.

It is a happy number.

It is not a de Polignac number, because 2493639 - 2⁷ = 2493511 is a prime.

2493639 is a lucky 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46152 + ... + 46205.

It is an arithmetic number, because the mean of its divisors is an integer number (461790).

2^2493639 is an apocalyptic number.

2493639 is a deficient number, since it is larger than the sum of its proper divisors (1200681).

2493639 is an equidigital number, since it uses as much as digits as its factorization.

2493639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92366 (or 92360 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 2493639 is about 1579.1260241032. The cubic root of 2493639 is about 135.6056736603.

The spelling of 2493639 in words is "two million, four hundred ninety-three thousand, six hundred thirty-nine".