19928795 has 16 divisors (see below), whose sum is σ = 24572160. Its totient is φ = 15510144.

The previous prime is 19928789. The next prime is 19928803. The reversal of 19928795 is 59782991.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 19928795 - 2¹⁸ = 19666651 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41366 + ... + 41844.

It is an arithmetic number, because the mean of its divisors is an integer number (1535760).

Almost surely, 2^19928795 is an apocalyptic number.

19928795 is a deficient number, since it is larger than the sum of its proper divisors (4643365).

19928795 is a wasteful number, since it uses less digits than its factorization.

19928795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its digits is 408240, while the sum is 50.

The square root of 19928795 is about 4464.1678955882. The cubic root of 19928795 is about 271.1192450990.

The spelling of 19928795 in words is "nineteen million, nine hundred twenty-eight thousand, seven hundred ninety-five".