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82895221 is a prime number
BaseRepresentation
bin1001111000011…
…10000101110101
312202222111212101
410330032011311
5132210121341
612120422101
72024412013
oct474160565
9182874771
1082895221
1142879452
1223917931
1314235136
14b01b8b3
157426831
hex4f0e175

82895221 has 2 divisors, whose sum is σ = 82895222. Its totient is φ = 82895220.

The previous prime is 82895203. The next prime is 82895227. The reversal of 82895221 is 12259828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79014321 + 3880900 = 8889^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 82895221 - 213 = 82887029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82895227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41447610 + 41447611.

It is an arithmetic number, because the mean of its divisors is an integer number (41447611).

Almost surely, 282895221 is an apocalyptic number.

It is an amenable number.

82895221 is a deficient number, since it is larger than the sum of its proper divisors (1).

82895221 is an equidigital number, since it uses as much as digits as its factorization.

82895221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 37.

The square root of 82895221 is about 9104.6812684465. The cubic root of 82895221 is about 436.0234342677.

The spelling of 82895221 in words is "eighty-two million, eight hundred ninety-five thousand, two hundred twenty-one".