16485987 has 16 divisors (see below), whose sum is σ = 25477632. Its totient is φ = 9287040.

The previous prime is 16485967. The next prime is 16485991. The reversal of 16485987 is 78958461.

It is not a de Polignac number, because 16485987 - 2¹⁸ = 16223843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16485907) 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, 4038 + ... + 7019.

It is an arithmetic number, because the mean of its divisors is an integer number (1592352).

Almost surely, 2^16485987 is an apocalyptic number.

16485987 is a deficient number, since it is larger than the sum of its proper divisors (8991645).

16485987 is a wasteful number, since it uses less digits than its factorization.

16485987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11138.

The product of its digits is 483840, while the sum is 48.

The square root of 16485987 is about 4060.2939548757. The cubic root of 16485987 is about 254.5100781735.

The spelling of 16485987 in words is "sixteen million, four hundred eighty-five thousand, nine hundred eighty-seven".