16950643 has 4 divisors (see below), whose sum is σ = 17344888. Its totient is φ = 16556400.

The previous prime is 16950631. The next prime is 16950697. The reversal of 16950643 is 34605961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16950643 - 2²¹ = 14853491 is a prime.

It is a super-2 number, since 2×16950643² = 574648596226898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16950599 and 16950608.

It is not an unprimeable number, because it can be changed into a prime (16950943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197058 + ... + 197143.

It is an arithmetic number, because the mean of its divisors is an integer number (4336222).

Almost surely, 2^16950643 is an apocalyptic number.

16950643 is a deficient number, since it is larger than the sum of its proper divisors (394245).

16950643 is an equidigital number, since it uses as much as digits as its factorization.

16950643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394244.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 16950643 is about 4117.1158594336. The cubic root of 16950643 is about 256.8790732498.

The spelling of 16950643 in words is "sixteen million, nine hundred fifty thousand, six hundred forty-three".