16899291 has 12 divisors (see below), whose sum is σ = 24465168. Its totient is φ = 11240784.

The previous prime is 16899283. The next prime is 16899293. The reversal of 16899291 is 19299861.

It is not a de Polignac number, because 16899291 - 2³ = 16899283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16899293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2661 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (2038764).

Almost surely, 2^16899291 is an apocalyptic number.

16899291 is a deficient number, since it is larger than the sum of its proper divisors (7565877).

16899291 is a wasteful number, since it uses less digits than its factorization.

16899291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242 (or 4239 counting only the distinct ones).

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

The square root of 16899291 is about 4110.8747244352. The cubic root of 16899291 is about 256.6194056645.

The spelling of 16899291 in words is "sixteen million, eight hundred ninety-nine thousand, two hundred ninety-one".