16775946 has 48 divisors (see below), whose sum is σ = 39948480. Its totient is φ = 5045760.

The previous prime is 16775939. The next prime is 16775959. The reversal of 16775946 is 64957761.

It is a happy number.

Its product of digits (317520) is a multiple of the sum of its prime divisors (648).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37995 + ... + 38433.

It is an arithmetic number, because the mean of its divisors is an integer number (832260).

Almost surely, 2^16775946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16775946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19974240).

16775946 is an abundant number, since it is smaller than the sum of its proper divisors (23172534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16775946 is a wasteful number, since it uses less digits than its factorization.

16775946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 648 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 16775946 is about 4095.8449677692. The cubic root of 16775946 is about 255.9935402830.

The spelling of 16775946 in words is "sixteen million, seven hundred seventy-five thousand, nine hundred forty-six".