8990386 has 4 divisors (see below), whose sum is σ = 13485582. Its totient is φ = 4495192.

The previous prime is 8990353. The next prime is 8990407. The reversal of 8990386 is 6830998.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5452225 + 3538161 = 2335^2 + 1881^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2247595 + ... + 2247598.

Almost surely, 2^8990386 is an apocalyptic number.

8990386 is a deficient number, since it is larger than the sum of its proper divisors (4495196).

8990386 is a wasteful number, since it uses less digits than its factorization.

8990386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495195.

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

The square root of 8990386 is about 2998.3972385259. The cubic root of 8990386 is about 207.9342895243.

The spelling of 8990386 in words is "eight million, nine hundred ninety thousand, three hundred eighty-six".