16283993 has 8 divisors (see below), whose sum is σ = 18377280. Its totient is φ = 14292880.

The previous prime is 16283987. The next prime is 16284013. The reversal of 16283993 is 39938261.

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

It is a cyclic number.

It is not a de Polignac number, because 16283993 - 2¹⁸ = 16021849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16283993.

It is not an unprimeable number, because it can be changed into a prime (16283923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25205 + ... + 25842.

It is an arithmetic number, because the mean of its divisors is an integer number (2297160).

Almost surely, 2^16283993 is an apocalyptic number.

It is an amenable number.

16283993 is a deficient number, since it is larger than the sum of its proper divisors (2093287).

16283993 is a wasteful number, since it uses less digits than its factorization.

16283993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51087.

The product of its digits is 69984, while the sum is 41.

The square root of 16283993 is about 4035.3429841836. The cubic root of 16283993 is about 253.4663450089.

The spelling of 16283993 in words is "sixteen million, two hundred eighty-three thousand, nine hundred ninety-three".