16916961 has 8 divisors (see below), whose sum is σ = 22595200. Its totient is φ = 11258352.

The previous prime is 16916959. The next prime is 16916971. The reversal of 16916961 is 16961961.

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

It is not a de Polignac number, because 16916961 - 2¹ = 16916959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16916951) 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, 2761 + ... + 6438.

It is an arithmetic number, because the mean of its divisors is an integer number (2824400).

Almost surely, 2^16916961 is an apocalyptic number.

It is an amenable number.

16916961 is a deficient number, since it is larger than the sum of its proper divisors (5678239).

16916961 is an equidigital number, since it uses as much as digits as its factorization.

16916961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815.

The product of its digits is 17496, while the sum is 39.

The square root of 16916961 is about 4113.0233405611. The cubic root of 16916961 is about 256.7088154390.

The spelling of 16916961 in words is "sixteen million, nine hundred sixteen thousand, nine hundred sixty-one".