16819089 has 8 divisors (see below), whose sum is σ = 25629120. Its totient is φ = 9610896.

The previous prime is 16819087. The next prime is 16819097. The reversal of 16819089 is 98091861.

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

It is not a de Polignac number, because 16819089 - 2¹ = 16819087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16819089.

It is not an unprimeable number, because it can be changed into a prime (16819087) 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, 400434 + ... + 400475.

It is an arithmetic number, because the mean of its divisors is an integer number (3203640).

Almost surely, 2^16819089 is an apocalyptic number.

It is an amenable number.

16819089 is a deficient number, since it is larger than the sum of its proper divisors (8810031).

16819089 is an equidigital number, since it uses as much as digits as its factorization.

16819089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800919.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 16819089 is about 4101.1082648474. The cubic root of 16819089 is about 256.2128001522.

The spelling of 16819089 in words is "sixteen million, eight hundred nineteen thousand, eighty-nine".