16894961 has 6 divisors (see below), whose sum is σ = 17031462. Its totient is φ = 16759520.

The previous prime is 16894931. The next prime is 16894963. The reversal of 16894961 is 16949861.

It can be written as a sum of positive squares in 3 ways, for example, as 2689600 + 14205361 = 1640^2 + 3769^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16894961 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 (16894963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21821 + ... + 22581.

It is an arithmetic number, because the mean of its divisors is an integer number (2838577).

Almost surely, 2^16894961 is an apocalyptic number.

It is an amenable number.

16894961 is a deficient number, since it is larger than the sum of its proper divisors (136501).

16894961 is an frugal number, since it uses more digits than its factorization.

16894961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 910 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 16894961 is about 4110.3480387918. The cubic root of 16894961 is about 256.5974864620.

The spelling of 16894961 in words is "sixteen million, eight hundred ninety-four thousand, nine hundred sixty-one".