19397914 has 4 divisors (see below), whose sum is σ = 29096874. Its totient is φ = 9698956.

The previous prime is 19397891. The next prime is 19397921. The reversal of 19397914 is 41979391.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12285025 + 7112889 = 3505^2 + 2667^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4849477 + ... + 4849480.

Almost surely, 2^19397914 is an apocalyptic number.

19397914 is a deficient number, since it is larger than the sum of its proper divisors (9698960).

19397914 is an equidigital number, since it uses as much as digits as its factorization.

19397914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9698959.

The product of its digits is 61236, while the sum is 43.

The square root of 19397914 is about 4404.3063017915. The cubic root of 19397914 is about 268.6901071510.

The spelling of 19397914 in words is "nineteen million, three hundred ninety-seven thousand, nine hundred fourteen".