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72287 is a prime number
BaseRepresentation
bin10001101001011111
310200011022
4101221133
54303122
61314355
7420515
oct215137
9120138
1072287
114a346
12359bb
1326b97
141c4b5
1516642
hex11a5f

72287 has 2 divisors, whose sum is σ = 72288. Its totient is φ = 72286.

The previous prime is 72277. The next prime is 72307. The reversal of 72287 is 78227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72287 - 24 = 72271 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36143 + 36144.

It is an arithmetic number, because the mean of its divisors is an integer number (36144).

272287 is an apocalyptic number.

72287 is a deficient number, since it is larger than the sum of its proper divisors (1).

72287 is an equidigital number, since it uses as much as digits as its factorization.

72287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568, while the sum is 26.

The square root of 72287 is about 268.8624183481. The cubic root of 72287 is about 41.6568794790.

The spelling of 72287 in words is "seventy-two thousand, two hundred eighty-seven".