16949894 has 16 divisors (see below), whose sum is σ = 27457920. Its totient is φ = 7800960.

The previous prime is 16949879. The next prime is 16949899. The reversal of 16949894 is 49894961.

It is a happy number.

It is a super-2 number, since 2×16949894² = 574597813222472, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16949899) 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, 11774 + ... + 13134.

It is an arithmetic number, because the mean of its divisors is an integer number (1716120).

Almost surely, 2^16949894 is an apocalyptic number.

16949894 is a deficient number, since it is larger than the sum of its proper divisors (10508026).

16949894 is a wasteful number, since it uses less digits than its factorization.

16949894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855.

The product of its digits is 559872, while the sum is 50.

The square root of 16949894 is about 4117.0248966942. The cubic root of 16949894 is about 256.8752896124.

The spelling of 16949894 in words is "sixteen million, nine hundred forty-nine thousand, eight hundred ninety-four".