18100793 has 6 divisors (see below), whose sum is σ = 18922554. Its totient is φ = 17313296.

The previous prime is 18100783. The next prime is 18100837. The reversal of 18100793 is 39700181.

It can be written as a sum of positive squares in only one way, i.e., 17909824 + 190969 = 4232^2 + 437^2 .

It is not a de Polignac number, because 18100793 - 2⁶ = 18100729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18100703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16580 + ... + 17637.

It is an arithmetic number, because the mean of its divisors is an integer number (3153759).

Almost surely, 2^18100793 is an apocalyptic number.

It is an amenable number.

18100793 is a deficient number, since it is larger than the sum of its proper divisors (821761).

18100793 is an equidigital number, since it uses as much as digits as its factorization.

18100793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34263 (or 34240 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 18100793 is about 4254.5026736388. The cubic root of 18100793 is about 262.5624002825.

The spelling of 18100793 in words is "eighteen million, one hundred thousand, seven hundred ninety-three".