2493893 has 4 divisors (see below), whose sum is σ = 2497440. Its totient is φ = 2490348.

The previous prime is 2493877. The next prime is 2493923. The reversal of 2493893 is 3983942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2493893 - 2⁴ = 2493877 is a prime.

It is a super-4 number, since 4×2493893⁴ (a number of 27 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2493833) 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, 323 + ... + 2256.

It is an arithmetic number, because the mean of its divisors is an integer number (624360).

2^2493893 is an apocalyptic number.

It is an amenable number.

2493893 is a deficient number, since it is larger than the sum of its proper divisors (3547).

2493893 is an equidigital number, since it uses as much as digits as its factorization.

2493893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546.

The product of its digits is 46656, while the sum is 38.

The square root of 2493893 is about 1579.2064462888. The cubic root of 2493893 is about 135.6102777312.

The spelling of 2493893 in words is "two million, four hundred ninety-three thousand, eight hundred ninety-three".