16039887 has 8 divisors (see below), whose sum is σ = 21429504. Its totient is φ = 10671768.

The previous prime is 16039879. The next prime is 16039909. The reversal of 16039887 is 78893061.

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

It is not a de Polignac number, because 16039887 - 2³ = 16039879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16039087) 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, 3543 + ... + 6680.

It is an arithmetic number, because the mean of its divisors is an integer number (2678688).

Almost surely, 2^16039887 is an apocalyptic number.

16039887 is a deficient number, since it is larger than the sum of its proper divisors (5389617).

16039887 is a wasteful number, since it uses less digits than its factorization.

16039887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10749.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 16039887 is about 4004.9827714985. The cubic root of 16039887 is about 252.1934298466.

The spelling of 16039887 in words is "sixteen million, thirty-nine thousand, eight hundred eighty-seven".