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8425237 is a prime number
BaseRepresentation
bin100000001000…
…111100010101
3120212001020211
4200020330111
54124101422
6500325421
7131420242
oct40107425
916761224
108425237
114835007
1229a3871
13198cb62
1411945c9
15b16577
hex808f15

8425237 has 2 divisors, whose sum is σ = 8425238. Its totient is φ = 8425236.

The previous prime is 8425187. The next prime is 8425243. The reversal of 8425237 is 7325248.

8425237 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6922161 + 1503076 = 2631^2 + 1226^2 .

It is a cyclic number.

It is not a de Polignac number, because 8425237 - 223 = 36629 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 8 + 4 + 2 + 53 + 223 + 39 + 75 .

It is a junction number, because it is equal to n+sod(n) for n = 8425199 and 8425208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8425537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4212618 + 4212619.

It is an arithmetic number, because the mean of its divisors is an integer number (4212619).

Almost surely, 28425237 is an apocalyptic number.

It is an amenable number.

8425237 is a deficient number, since it is larger than the sum of its proper divisors (1).

8425237 is an equidigital number, since it uses as much as digits as its factorization.

8425237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 31.

The square root of 8425237 is about 2902.6258801299. The cubic root of 8425237 is about 203.4826455629.

The spelling of 8425237 in words is "eight million, four hundred twenty-five thousand, two hundred thirty-seven".