16899772 has 12 divisors (see below), whose sum is σ = 29791440. Its totient is φ = 8387936.

The previous prime is 16899767. The next prime is 16899791. The reversal of 16899772 is 27799861.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14872 + ... + 15967.

It is an arithmetic number, because the mean of its divisors is an integer number (2482620).

Almost surely, 2^16899772 is an apocalyptic number.

It is an amenable number.

16899772 is a deficient number, since it is larger than the sum of its proper divisors (12891668).

16899772 is a wasteful number, since it uses less digits than its factorization.

16899772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30980 (or 30978 counting only the distinct ones).

The product of its digits is 381024, while the sum is 49.

The square root of 16899772 is about 4110.9332273828. The cubic root of 16899772 is about 256.6218403379.

It can be divided in two parts, 16899 and 772, that added together give a palindrome (17671).

The spelling of 16899772 in words is "sixteen million, eight hundred ninety-nine thousand, seven hundred seventy-two".