16287946 has 8 divisors (see below), whose sum is σ = 24470244. Its totient is φ = 8131200.

The previous prime is 16287941. The next prime is 16287961. The reversal of 16287946 is 64978261.

It can be written as a sum of positive squares in 2 ways, for example, as 14907321 + 1380625 = 3861^2 + 1175^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16287941) 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 3 ways as a sum of consecutive naturals, for example, 4705 + ... + 7396.

Almost surely, 2^16287946 is an apocalyptic number.

16287946 is a deficient number, since it is larger than the sum of its proper divisors (8182298).

16287946 is a wasteful number, since it uses less digits than its factorization.

16287946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12776.

The product of its digits is 145152, while the sum is 43.

The square root of 16287946 is about 4035.8327517379. The cubic root of 16287946 is about 253.4868533162.

The spelling of 16287946 in words is "sixteen million, two hundred eighty-seven thousand, nine hundred forty-six".