16891077 has 8 divisors (see below), whose sum is σ = 25738816. Its totient is φ = 9652032.

The previous prime is 16891067. The next prime is 16891097. The reversal of 16891077 is 77019861.

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

It is not a de Polignac number, because 16891077 - 2⁷ = 16890949 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 (16891037) 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 7 ways as a sum of consecutive naturals, for example, 402148 + ... + 402189.

It is an arithmetic number, because the mean of its divisors is an integer number (3217352).

Almost surely, 2^16891077 is an apocalyptic number.

It is an amenable number.

16891077 is a deficient number, since it is larger than the sum of its proper divisors (8847739).

16891077 is an equidigital number, since it uses as much as digits as its factorization.

16891077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804347.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 16891077 is about 4109.8755455610. The cubic root of 16891077 is about 256.5778218015.

The spelling of 16891077 in words is "sixteen million, eight hundred ninety-one thousand, seventy-seven".