8392990 has 16 divisors (see below), whose sum is σ = 15356160. Its totient is φ = 3301920.

The previous prime is 8392961. The next prime is 8392997. The reversal of 8392990 is 992938.

It is a happy number.

It is a super-2 number, since 2×8392990² = 140884562280200, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8 + 3⁷ + 9³ + 2²³ + 9³ + 9³ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8392997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6270 + ... + 7489.

It is an arithmetic number, because the mean of its divisors is an integer number (959760).

Almost surely, 2^8392990 is an apocalyptic number.

8392990 is a deficient number, since it is larger than the sum of its proper divisors (6963170).

8392990 is a wasteful number, since it uses less digits than its factorization.

8392990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13827.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 8392990 is about 2897.0657569341. The cubic root of 8392990 is about 203.2227084951. Note that the first 3 decimals are identical.

The spelling of 8392990 in words is "eight million, three hundred ninety-two thousand, nine hundred ninety".