16385387 has 4 divisors (see below), whose sum is σ = 16476096. Its totient is φ = 16294680.

The previous prime is 16385359. The next prime is 16385389. The reversal of 16385387 is 78358361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16385387 - 2²² = 12191083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16385389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45083 + ... + 45444.

It is an arithmetic number, because the mean of its divisors is an integer number (4119024).

Almost surely, 2^16385387 is an apocalyptic number.

16385387 is a deficient number, since it is larger than the sum of its proper divisors (90709).

16385387 is an equidigital number, since it uses as much as digits as its factorization.

16385387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90708.

The product of its digits is 120960, while the sum is 41.

The square root of 16385387 is about 4047.8867326051. The cubic root of 16385387 is about 253.9913351871.

The spelling of 16385387 in words is "sixteen million, three hundred eighty-five thousand, three hundred eighty-seven".