8194990 has 8 divisors (see below), whose sum is σ = 14751000. Its totient is φ = 3277992.

The previous prime is 8194987. The next prime is 8194997. The reversal of 8194990 is 994918.

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

It is a super-2 number, since 2×8194990² = 134315722200200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8194997) 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, 409740 + ... + 409759.

It is an arithmetic number, because the mean of its divisors is an integer number (1843875).

Almost surely, 2^8194990 is an apocalyptic number.

8194990 is a deficient number, since it is larger than the sum of its proper divisors (6556010).

8194990 is a wasteful number, since it uses less digits than its factorization.

8194990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819506.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 8194990 is about 2862.6892950511. The cubic root of 8194990 is about 201.6118908068.

The spelling of 8194990 in words is "eight million, one hundred ninety-four thousand, nine hundred ninety".