16389793 has 16 divisors (see below), whose sum is σ = 19759104. Its totient is φ = 13297680.

The previous prime is 16389757. The next prime is 16389797. The reversal of 16389793 is 39798361.

16389793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16389793 - 2¹³ = 16381601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16389797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9396 + ... + 11002.

It is an arithmetic number, because the mean of its divisors is an integer number (1234944).

Almost surely, 2^16389793 is an apocalyptic number.

It is an amenable number.

16389793 is a deficient number, since it is larger than the sum of its proper divisors (3369311).

16389793 is a wasteful number, since it uses less digits than its factorization.

16389793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692.

The product of its digits is 244944, while the sum is 46.

The square root of 16389793 is about 4048.4309306199. The cubic root of 16389793 is about 254.0140990789.

The spelling of 16389793 in words is "sixteen million, three hundred eighty-nine thousand, seven hundred ninety-three".