16277891 has 16 divisors (see below), whose sum is σ = 20235456. Its totient is φ = 12773376.

The previous prime is 16277881. The next prime is 16277909. The reversal of 16277891 is 19877261.

It is not a de Polignac number, because 16277891 - 2⁶ = 16277827 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (16277801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2555 + ... + 6251.

It is an arithmetic number, because the mean of its divisors is an integer number (1264716).

Almost surely, 2^16277891 is an apocalyptic number.

16277891 is a deficient number, since it is larger than the sum of its proper divisors (3957565).

16277891 is a wasteful number, since it uses less digits than its factorization.

16277891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758.

The product of its digits is 42336, while the sum is 41.

The square root of 16277891 is about 4034.5868437797. The cubic root of 16277891 is about 253.4346810948.

The spelling of 16277891 in words is "sixteen million, two hundred seventy-seven thousand, eight hundred ninety-one".