16320393 has 16 divisors (see below), whose sum is σ = 24272640. Its totient is φ = 10837872.

The previous prime is 16320371. The next prime is 16320401. The reversal of 16320393 is 39302361.

16320393 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16320393 - 2⁸ = 16320137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16320313) 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, 6880 + ... + 8942.

It is an arithmetic number, because the mean of its divisors is an integer number (1517040).

Almost surely, 2^16320393 is an apocalyptic number.

It is an amenable number.

16320393 is a deficient number, since it is larger than the sum of its proper divisors (7952247).

16320393 is a wasteful number, since it uses less digits than its factorization.

16320393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365 (or 2359 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 16320393 is about 4039.8506160501. The cubic root of 16320393 is about 253.6550642620.

The spelling of 16320393 in words is "sixteen million, three hundred twenty thousand, three hundred ninety-three".