16670089 has 4 divisors (see below), whose sum is σ = 16683156. Its totient is φ = 16657024.

The previous prime is 16670083. The next prime is 16670117. The reversal of 16670089 is 98007661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98007661 = 4409 ⋅22229.

It can be written as a sum of positive squares in 2 ways, for example, as 12638025 + 4032064 = 3555^2 + 2008^2 .

It is a cyclic number.

It is not a de Polignac number, because 16670089 - 2⁵ = 16670057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16670083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4384 + ... + 7249.

It is an arithmetic number, because the mean of its divisors is an integer number (4170789).

Almost surely, 2^16670089 is an apocalyptic number.

It is an amenable number.

16670089 is a deficient number, since it is larger than the sum of its proper divisors (13067).

16670089 is a wasteful number, since it uses less digits than its factorization.

16670089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13066.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 16670089 is about 4082.9020316437. The cubic root of 16670089 is about 255.4539600434.

The spelling of 16670089 in words is "sixteen million, six hundred seventy thousand, eighty-nine".