19697348 has 18 divisors (see below), whose sum is σ = 37889838. Its totient is φ = 8953120.

The previous prime is 19697347. The next prime is 19697389. The reversal of 19697348 is 84379691.

It can be written as a sum of positive squares in only one way, i.e., 10745284 + 8952064 = 3278^2 + 2992^2 .

It is not an unprimeable number, because it can be changed into a prime (19697341) 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 5 ways as a sum of consecutive naturals, for example, 19865 + ... + 20832.

It is an arithmetic number, because the mean of its divisors is an integer number (2104991).

Almost surely, 2^19697348 is an apocalyptic number.

It is an amenable number.

19697348 is a deficient number, since it is larger than the sum of its proper divisors (18192490).

19697348 is a wasteful number, since it uses less digits than its factorization.

19697348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40723 (or 40710 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 19697348 is about 4438.1694424616. The cubic root of 19697348 is about 270.0655899180.

The spelling of 19697348 in words is "nineteen million, six hundred ninety-seven thousand, three hundred forty-eight".