18968601 has 4 divisors (see below), whose sum is σ = 25291472. Its totient is φ = 12645732.

The previous prime is 18968597. The next prime is 18968627. The reversal of 18968601 is 10686981.

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 not a de Polignac number, because 18968601 - 2² = 18968597 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 18968601.

It is not an unprimeable number, because it can be changed into a prime (18968671) 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, 3161431 + ... + 3161436.

It is an arithmetic number, because the mean of its divisors is an integer number (6322868).

Almost surely, 2^18968601 is an apocalyptic number.

It is an amenable number.

18968601 is a deficient number, since it is larger than the sum of its proper divisors (6322871).

18968601 is an equidigital number, since it uses as much as digits as its factorization.

18968601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6322870.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 18968601 is about 4355.2957419675. The cubic root of 18968601 is about 266.6930923465.

The spelling of 18968601 in words is "eighteen million, nine hundred sixty-eight thousand, six hundred one".