16949973 has 8 divisors (see below), whose sum is σ = 22627008. Its totient is φ = 11286464.

The previous prime is 16949953. The next prime is 16949993. The reversal of 16949973 is 37994961.

It is an interprime number because it is at equal distance from previous prime (16949953) and next prime (16949993).

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 16949973 - 2²¹ = 14852821 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16949923) 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, 40 + ... + 5822.

It is an arithmetic number, because the mean of its divisors is an integer number (2828376).

Almost surely, 2^16949973 is an apocalyptic number.

It is an amenable number.

16949973 is a deficient number, since it is larger than the sum of its proper divisors (5677035).

16949973 is an equidigital number, since it uses as much as digits as its factorization.

16949973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6763.

The product of its digits is 367416, while the sum is 48.

The square root of 16949973 is about 4117.0344909898. The cubic root of 16949973 is about 256.8756886929.

The spelling of 16949973 in words is "sixteen million, nine hundred forty-nine thousand, nine hundred seventy-three".