2390993 has 4 divisors (see below), whose sum is σ = 2608368. Its totient is φ = 2173620.

The previous prime is 2390987. The next prime is 2391001. The reversal of 2390993 is 3990932.

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 2390993 - 2⁸ = 2390737 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2390923) 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, 108671 + ... + 108692.

It is an arithmetic number, because the mean of its divisors is an integer number (652092).

2^2390993 is an apocalyptic number.

It is an amenable number.

2390993 is a deficient number, since it is larger than the sum of its proper divisors (217375).

2390993 is a wasteful number, since it uses less digits than its factorization.

2390993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217374.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 2390993 is about 1546.2836091739. The cubic root of 2390993 is about 133.7188916501.

The spelling of 2390993 in words is "two million, three hundred ninety thousand, nine hundred ninety-three".