19793965 has 8 divisors (see below), whose sum is σ = 24519168. Its totient is φ = 15324240.

The previous prime is 19793947. The next prime is 19793971. The reversal of 19793965 is 56939791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19793965 - 2⁹ = 19793453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63697 + ... + 64006.

It is an arithmetic number, because the mean of its divisors is an integer number (3064896).

Almost surely, 2^19793965 is an apocalyptic number.

It is an amenable number.

19793965 is a deficient number, since it is larger than the sum of its proper divisors (4725203).

19793965 is a wasteful number, since it uses less digits than its factorization.

19793965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127739.

The product of its digits is 459270, while the sum is 49.

The square root of 19793965 is about 4449.0409078812. The cubic root of 19793965 is about 270.5064340421.

The spelling of 19793965 in words is "nineteen million, seven hundred ninety-three thousand, nine hundred sixty-five".