16772387 has 8 divisors (see below), whose sum is σ = 17795376. Its totient is φ = 15753472.

The previous prime is 16772341. The next prime is 16772389. The reversal of 16772387 is 78327761.

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

It is a cyclic number.

It is not a de Polignac number, because 16772387 - 2⁸ = 16772131 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (16772389) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13463 + ... + 14655.

It is an arithmetic number, because the mean of its divisors is an integer number (2224422).

Almost surely, 2^16772387 is an apocalyptic number.

16772387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16772387 is a deficient number, since it is larger than the sum of its proper divisors (1022989).

16772387 is a wasteful number, since it uses less digits than its factorization.

16772387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037.

The product of its digits is 98784, while the sum is 41.

The square root of 16772387 is about 4095.4104800374. The cubic root of 16772387 is about 255.9754360790.

The spelling of 16772387 in words is "sixteen million, seven hundred seventy-two thousand, three hundred eighty-seven".