22803493 has 4 divisors (see below), whose sum is σ = 22819680. Its totient is φ = 22787308.

The previous prime is 22803481. The next prime is 22803499. The reversal of 22803493 is 39430822.

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 22803493 - 2⁵ = 22803461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22803499) 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, 5755 + ... + 8872.

It is an arithmetic number, because the mean of its divisors is an integer number (5704920).

Almost surely, 2^22803493 is an apocalyptic number.

It is an amenable number.

22803493 is a deficient number, since it is larger than the sum of its proper divisors (16187).

22803493 is a wasteful number, since it uses less digits than its factorization.

22803493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16186.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 22803493 is about 4775.3003046929. The cubic root of 22803493 is about 283.5744676933.

The spelling of 22803493 in words is "twenty-two million, eight hundred three thousand, four hundred ninety-three".