8194989 has 16 divisors (see below), whose sum is σ = 12040704. Its totient is φ = 4916400.

The previous prime is 8194987. The next prime is 8194997. The reversal of 8194989 is 9894918.

It is not a de Polignac number, because 8194989 - 2¹ = 8194987 is a prime.

8194989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8194981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2194 + ... + 4604.

It is an arithmetic number, because the mean of its divisors is an integer number (752544).

Almost surely, 2^8194989 is an apocalyptic number.

It is an amenable number.

8194989 is a deficient number, since it is larger than the sum of its proper divisors (3845715).

8194989 is a wasteful number, since it uses less digits than its factorization.

8194989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528.

The product of its digits is 186624, while the sum is 48.

The square root of 8194989 is about 2862.6891203901. The cubic root of 8194989 is about 201.6118826062.

The spelling of 8194989 in words is "eight million, one hundred ninety-four thousand, nine hundred eighty-nine".