8383890 has 48 divisors (see below), whose sum is σ = 21396672. Its totient is φ = 2102016.

The previous prime is 8383861. The next prime is 8383897. The reversal of 8383890 is 983838.

It is a happy number.

It is a super-2 number, since 2×8383890² = 140579223064200, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (8383897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8187 + ... + 9153.

It is an arithmetic number, because the mean of its divisors is an integer number (445764).

Almost surely, 2^8383890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8383890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10698336).

8383890 is an abundant number, since it is smaller than the sum of its proper divisors (13012782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8383890 is a wasteful number, since it uses less digits than its factorization.

8383890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 8383890 is about 2895.4947763724. The cubic root of 8383890 is about 203.1492346627.

The spelling of 8383890 in words is "eight million, three hundred eighty-three thousand, eight hundred ninety".