16087439 has 4 divisors (see below), whose sum is σ = 16098456. Its totient is φ = 16076424.

The previous prime is 16087427. The next prime is 16087451. The reversal of 16087439 is 93478061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (16087427) and next prime (16087451).

It is a cyclic number.

It is not a de Polignac number, because 16087439 - 2¹⁶ = 16021903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16087039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2909 + ... + 6374.

It is an arithmetic number, because the mean of its divisors is an integer number (4024614).

Almost surely, 2^16087439 is an apocalyptic number.

16087439 is a deficient number, since it is larger than the sum of its proper divisors (11017).

16087439 is an equidigital number, since it uses as much as digits as its factorization.

16087439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11016.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 16087439 is about 4010.9149828936. The cubic root of 16087439 is about 252.4424023119.

The spelling of 16087439 in words is "sixteen million, eighty-seven thousand, four hundred thirty-nine".