16620967 has 8 divisors (see below), whose sum is σ = 18228240. Its totient is φ = 15029760.

The previous prime is 16620943. The next prime is 16620971. The reversal of 16620967 is 76902661.

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 16620967 - 2¹⁹ = 16096679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16620937) 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, 1792 + ... + 6037.

It is an arithmetic number, because the mean of its divisors is an integer number (2278530).

Almost surely, 2^16620967 is an apocalyptic number.

16620967 is a deficient number, since it is larger than the sum of its proper divisors (1607273).

16620967 is a wasteful number, since it uses less digits than its factorization.

16620967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8033.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 16620967 is about 4076.8820193869. The cubic root of 16620967 is about 255.2027965139.

The spelling of 16620967 in words is "sixteen million, six hundred twenty thousand, nine hundred sixty-seven".