19893385 has 8 divisors (see below), whose sum is σ = 24174720. Its totient is φ = 15712944.

The previous prime is 19893373. The next prime is 19893409. The reversal of 19893385 is 58339891.

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

It is a cyclic number.

It is not a de Polignac number, because 19893385 - 2⁵ = 19893353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24787 + ... + 25576.

It is an arithmetic number, because the mean of its divisors is an integer number (3021840).

Almost surely, 2^19893385 is an apocalyptic number.

It is an amenable number.

19893385 is a deficient number, since it is larger than the sum of its proper divisors (4281335).

19893385 is an equidigital number, since it uses as much as digits as its factorization.

19893385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50447.

The product of its digits is 233280, while the sum is 46.

The square root of 19893385 is about 4460.2001076185. The cubic root of 19893385 is about 270.9585726628.

The spelling of 19893385 in words is "nineteen million, eight hundred ninety-three thousand, three hundred eighty-five".