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89591 is a prime number
BaseRepresentation
bin10101110111110111
311112220012
4111313313
510331331
61530435
7522125
oct256767
9145805
1089591
1161347
1243a1b
1331a18
1424915
151b82b
hex15df7

89591 has 2 divisors, whose sum is σ = 89592. Its totient is φ = 89590.

The previous prime is 89567. The next prime is 89597. The reversal of 89591 is 19598.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89591 - 26 = 89527 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 89591.

It is not a weakly prime, because it can be changed into another prime (89597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44795 + 44796.

It is an arithmetic number, because the mean of its divisors is an integer number (44796).

289591 is an apocalyptic number.

89591 is a deficient number, since it is larger than the sum of its proper divisors (1).

89591 is an equidigital number, since it uses as much as digits as its factorization.

89591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 32.

The square root of 89591 is about 299.3175571195. The cubic root of 89591 is about 44.7460593890.

The spelling of 89591 in words is "eighty-nine thousand, five hundred ninety-one".