19089317 has 12 divisors (see below), whose sum is σ = 21842436. Its totient is φ = 16581120.

The previous prime is 19089311. The next prime is 19089349. The reversal of 19089317 is 71398091.

It can be written as a sum of positive squares in 6 ways, for example, as 201601 + 18887716 = 449^2 + 4346^2 .

It is not a de Polignac number, because 19089317 - 2¹² = 19085221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19089311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1217 + ... + 6297.

It is an arithmetic number, because the mean of its divisors is an integer number (1820203).

Almost surely, 2^19089317 is an apocalyptic number.

19089317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

19089317 is a deficient number, since it is larger than the sum of its proper divisors (2753119).

19089317 is a wasteful number, since it uses less digits than its factorization.

19089317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128 (or 5111 counting only the distinct ones).

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

The square root of 19089317 is about 4369.1322937169. The cubic root of 19089317 is about 267.2576405598.

The spelling of 19089317 in words is "nineteen million, eighty-nine thousand, three hundred seventeen".