16672287 has 8 divisors (see below), whose sum is σ = 22249600. Its totient is φ = 11104920.

The previous prime is 16672283. The next prime is 16672321. The reversal of 16672287 is 78227661.

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

It is not a de Polignac number, because 16672287 - 2² = 16672283 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16672283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3462 + ... + 6732.

It is an arithmetic number, because the mean of its divisors is an integer number (2781200).

Almost surely, 2^16672287 is an apocalyptic number.

16672287 is a deficient number, since it is larger than the sum of its proper divisors (5577313).

16672287 is a wasteful number, since it uses less digits than its factorization.

16672287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973.

The product of its digits is 56448, while the sum is 39.

The square root of 16672287 is about 4083.1711940598. The cubic root of 16672287 is about 255.4651870006.

The spelling of 16672287 in words is "sixteen million, six hundred seventy-two thousand, two hundred eighty-seven".