19697064 has 16 divisors (see below), whose sum is σ = 49242720. Its totient is φ = 6565680.

The previous prime is 19697057. The next prime is 19697071. The reversal of 19697064 is 46079691.

It is an interprime number because it is at equal distance from previous prime (19697057) and next prime (19697071).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 410332 + ... + 410379.

It is an arithmetic number, because the mean of its divisors is an integer number (3077670).

Almost surely, 2^19697064 is an apocalyptic number.

It is an amenable number.

19697064 is an abundant number, since it is smaller than the sum of its proper divisors (29545656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19697064 is a wasteful number, since it uses less digits than its factorization.

19697064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820720 (or 820716 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 19697064 is about 4438.1374471731. The cubic root of 19697064 is about 270.0642919599.

The spelling of 19697064 in words is "nineteen million, six hundred ninety-seven thousand, sixty-four".