Search a number
-
+
8396881 is a prime number
BaseRepresentation
bin100000000010…
…000001010001
3120210121100121
4200002001101
54122200011
6455550241
7131241463
oct40020121
916717317
108396881
114815779
12298b381
13197cc8c
141188133
15b0ce71
hex802051

8396881 has 2 divisors, whose sum is σ = 8396882. Its totient is φ = 8396880.

The previous prime is 8396873. The next prime is 8396951. The reversal of 8396881 is 1886938.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5452225 + 2944656 = 2335^2 + 1716^2 .

It is a cyclic number.

It is not a de Polignac number, because 8396881 - 23 = 8396873 is a prime.

It is a super-2 number, since 2×83968812 = 141015221056322, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8396281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4198440 + 4198441.

It is an arithmetic number, because the mean of its divisors is an integer number (4198441).

Almost surely, 28396881 is an apocalyptic number.

It is an amenable number.

8396881 is a deficient number, since it is larger than the sum of its proper divisors (1).

8396881 is an equidigital number, since it uses as much as digits as its factorization.

8396881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 43.

The square root of 8396881 is about 2897.7372206603. The cubic root of 8396881 is about 203.2541084051.

The spelling of 8396881 in words is "eight million, three hundred ninety-six thousand, eight hundred eighty-one".