16946089 has 4 divisors (see below), whose sum is σ = 16954324. Its totient is φ = 16937856.

The previous prime is 16946077. The next prime is 16946099. The reversal of 16946089 is 98064961.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98064961 = 103 ⋅952087.

It can be written as a sum of positive squares in 2 ways, for example, as 12673600 + 4272489 = 3560^2 + 2067^2 .

It is a cyclic number.

It is not a de Polignac number, because 16946089 - 2⁷ = 16945961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16946099) 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, 1969 + ... + 6145.

It is an arithmetic number, because the mean of its divisors is an integer number (4238581).

Almost surely, 2^16946089 is an apocalyptic number.

It is an amenable number.

16946089 is a deficient number, since it is larger than the sum of its proper divisors (8235).

16946089 is an equidigital number, since it uses as much as digits as its factorization.

16946089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8234.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 16946089 is about 4116.5627652205. The cubic root of 16946089 is about 256.8560666087.

The spelling of 16946089 in words is "sixteen million, nine hundred forty-six thousand, eighty-nine".