19713089 has 8 divisors (see below), whose sum is σ = 22637280. Its totient is φ = 16977600.

The previous prime is 19713041. The next prime is 19713101. The reversal of 19713089 is 98031791.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19713089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19713389) 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, 46952 + ... + 47369.

It is an arithmetic number, because the mean of its divisors is an integer number (2829660).

Almost surely, 2^19713089 is an apocalyptic number.

19713089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

19713089 is a deficient number, since it is larger than the sum of its proper divisors (2924191).

19713089 is a wasteful number, since it uses less digits than its factorization.

19713089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94351.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 19713089 is about 4439.9424545820. The cubic root of 19713089 is about 270.1375111150.

The spelling of 19713089 in words is "nineteen million, seven hundred thirteen thousand, eighty-nine".