18956093 has 8 divisors (see below), whose sum is σ = 20571936. Its totient is φ = 17362800.

The previous prime is 18956057. The next prime is 18956107. The reversal of 18956093 is 39065981.

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

It is not a de Polignac number, because 18956093 - 2²⁴ = 2178877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18956093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18956893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3863 + ... + 7268.

It is an arithmetic number, because the mean of its divisors is an integer number (2571492).

Almost surely, 2^18956093 is an apocalyptic number.

18956093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18956093 is a deficient number, since it is larger than the sum of its proper divisors (1615843).

18956093 is a wasteful number, since it uses less digits than its factorization.

18956093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11275.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 18956093 is about 4353.8595521675. The cubic root of 18956093 is about 266.6344598256.

The spelling of 18956093 in words is "eighteen million, nine hundred fifty-six thousand, ninety-three".