19697414 has 16 divisors (see below), whose sum is σ = 33929280. Its totient is φ = 8481960.

The previous prime is 19697413. The next prime is 19697417. The reversal of 19697414 is 41479691.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19697413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23144 + ... + 23979.

It is an arithmetic number, because the mean of its divisors is an integer number (2120580).

Almost surely, 2^19697414 is an apocalyptic number.

19697414 is a deficient number, since it is larger than the sum of its proper divisors (14231866).

19697414 is a wasteful number, since it uses less digits than its factorization.

19697414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47155.

The product of its digits is 54432, while the sum is 41.

The square root of 19697414 is about 4438.1768779534. The cubic root of 19697414 is about 270.0658915544.

The spelling of 19697414 in words is "nineteen million, six hundred ninety-seven thousand, four hundred fourteen".