16973994 has 8 divisors (see below), whose sum is σ = 33948000. Its totient is φ = 5657996.

The previous prime is 16973993. The next prime is 16974031. The reversal of 16973994 is 49937961.

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

16973994 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (16973993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1414494 + ... + 1414505.

It is an arithmetic number, because the mean of its divisors is an integer number (4243500).

Almost surely, 2^16973994 is an apocalyptic number.

16973994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16973994 is a wasteful number, since it uses less digits than its factorization.

16973994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829004.

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

The square root of 16973994 is about 4119.9507278607. The cubic root of 16973994 is about 256.9969769563.

It can be divided in two parts, 1697399 and 4, that added together give a triangular number (1697403 = T₁₈₄₂).

The spelling of 16973994 in words is "sixteen million, nine hundred seventy-three thousand, nine hundred ninety-four".