2493865 has 8 divisors (see below), whose sum is σ = 3264768. Its totient is φ = 1813680.

The previous prime is 2493859. The next prime is 2493877. The reversal of 2493865 is 5683942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2493865 - 2⁵ = 2493833 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 4⁹ + 9 + 3⁷ + 8⁷ + 6⁴ + 5 .

It is a Duffinian number.

2493865 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22617 + ... + 22726.

It is an arithmetic number, because the mean of its divisors is an integer number (408096).

2^2493865 is an apocalyptic number.

It is an amenable number.

2493865 is a deficient number, since it is larger than the sum of its proper divisors (770903).

2493865 is a wasteful number, since it uses less digits than its factorization.

2493865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45359.

The product of its digits is 51840, while the sum is 37.

The square root of 2493865 is about 1579.1975810518. The cubic root of 2493865 is about 135.6097702111.

It can be divided in two parts, 249 and 3865, that added together give a palindrome (4114).

The spelling of 2493865 in words is "two million, four hundred ninety-three thousand, eight hundred sixty-five".