19696172 has 6 divisors (see below), whose sum is σ = 34468308. Its totient is φ = 9848084.

The previous prime is 19696169. The next prime is 19696177. The reversal of 19696172 is 27169691.

It is not an unprimeable number, because it can be changed into a prime (19696177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2462018 + ... + 2462025.

It is an arithmetic number, because the mean of its divisors is an integer number (5744718).

Almost surely, 2^19696172 is an apocalyptic number.

It is an amenable number.

19696172 is a deficient number, since it is larger than the sum of its proper divisors (14772136).

19696172 is a wasteful number, since it uses less digits than its factorization.

19696172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924047 (or 4924045 counting only the distinct ones).

The product of its digits is 40824, while the sum is 41.

The square root of 19696172 is about 4438.0369534288. The cubic root of 19696172 is about 270.0602151935.

The spelling of 19696172 in words is "nineteen million, six hundred ninety-six thousand, one hundred seventy-two".