16168487 has 4 divisors (see below), whose sum is σ = 17019480. Its totient is φ = 15317496.

The previous prime is 16168469. The next prime is 16168489. The reversal of 16168487 is 78486161.

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

It is not a de Polignac number, because 16168487 - 2⁸ = 16168231 is a prime.

It is a super-2 number, since 2×16168487² = 522839943738338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16168489) 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, 425468 + ... + 425505.

It is an arithmetic number, because the mean of its divisors is an integer number (4254870).

Almost surely, 2^16168487 is an apocalyptic number.

16168487 is a deficient number, since it is larger than the sum of its proper divisors (850993).

16168487 is an equidigital number, since it uses as much as digits as its factorization.

16168487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850992.

The product of its digits is 64512, while the sum is 41.

The square root of 16168487 is about 4021.0057199661. The cubic root of 16168487 is about 252.8656246119.

The spelling of 16168487 in words is "sixteen million, one hundred sixty-eight thousand, four hundred eighty-seven".