16891299 has 12 divisors (see below), whose sum is σ = 24436776. Its totient is φ = 11243232.

The previous prime is 16891267. The next prime is 16891307. The reversal of 16891299 is 99219861.

It is not a de Polignac number, because 16891299 - 2⁵ = 16891267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16891219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7432 + ... + 9434.

It is an arithmetic number, because the mean of its divisors is an integer number (2036398).

Almost surely, 2^16891299 is an apocalyptic number.

16891299 is a deficient number, since it is larger than the sum of its proper divisors (7545477).

16891299 is a wasteful number, since it uses less digits than its factorization.

16891299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946 (or 2943 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 16891299 is about 4109.9025535893. The cubic root of 16891299 is about 256.5789458669.

The spelling of 16891299 in words is "sixteen million, eight hundred ninety-one thousand, two hundred ninety-nine".