16662937 has 4 divisors (see below), whose sum is σ = 16677136. Its totient is φ = 16648740.

The previous prime is 16662923. The next prime is 16662949. The reversal of 16662937 is 73926661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16662937 - 2⁷ = 16662809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16662937.

It is not an unprimeable number, because it can be changed into a prime (16662637) by changing a digit.

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, 5163 + ... + 7744.

It is an arithmetic number, because the mean of its divisors is an integer number (4169284).

Almost surely, 2^16662937 is an apocalyptic number.

16662937 is the 2582-nd heptagonal number.

It is an amenable number.

16662937 is a deficient number, since it is larger than the sum of its proper divisors (14199).

16662937 is a wasteful number, since it uses less digits than its factorization.

16662937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14198.

The product of its digits is 81648, while the sum is 40.

The square root of 16662937 is about 4082.0260900685. The cubic root of 16662937 is about 255.4174221847.

The spelling of 16662937 in words is "sixteen million, six hundred sixty-two thousand, nine hundred thirty-seven".