19314689 has 2 divisors, whose sum is σ = 19314690. Its totient is φ = 19314688.

The previous prime is 19314679. The next prime is 19314709. The reversal of 19314689 is 98641391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14938225 + 4376464 = 3865^2 + 2092^2 .

It is a cyclic number.

It is not a de Polignac number, because 19314689 - 2⁸ = 19314433 is a prime.

It is a super-2 number, since 2×19314689² = 746114422333442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19314679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9657344 + 9657345.

It is an arithmetic number, because the mean of its divisors is an integer number (9657345).

Almost surely, 2^19314689 is an apocalyptic number.

It is an amenable number.

19314689 is a deficient number, since it is larger than the sum of its proper divisors (1).

19314689 is an equidigital number, since it uses as much as digits as its factorization.

19314689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 19314689 is about 4394.8480064730. The cubic root of 19314689 is about 268.3052927332.

The spelling of 19314689 in words is "nineteen million, three hundred fourteen thousand, six hundred eighty-nine".