18448793 has 4 divisors (see below), whose sum is σ = 20125968. Its totient is φ = 16771620.

The previous prime is 18448789. The next prime is 18448799. The reversal of 18448793 is 39784481.

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 18448793 - 2² = 18448789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18448799) 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, 838571 + ... + 838592.

It is an arithmetic number, because the mean of its divisors is an integer number (5031492).

Almost surely, 2^18448793 is an apocalyptic number.

It is an amenable number.

18448793 is a deficient number, since it is larger than the sum of its proper divisors (1677175).

18448793 is a wasteful number, since it uses less digits than its factorization.

18448793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677174.

The product of its digits is 193536, while the sum is 44.

The square root of 18448793 is about 4295.2058157904. The cubic root of 18448793 is about 264.2343772977.

The spelling of 18448793 in words is "eighteen million, four hundred forty-eight thousand, seven hundred ninety-three".