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117589 = 176917

117589 has 4 divisors (see below), whose sum is σ = 124524. Its totient is φ = 110656.

The previous prime is 117577. The next prime is 117617. The reversal of 117589 is 985711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84100 + 33489 = 290^2 + 183^2 .

It is a cyclic number.

It is not a de Polignac number, because 117589 - 213 = 109397 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

117589 is a lucky number.

It is a nialpdrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 117589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3442 + ... + 3475.

It is an arithmetic number, because the mean of its divisors is an integer number (31131).

2117589 is an apocalyptic number.

It is an amenable number.

117589 is a deficient number, since it is larger than the sum of its proper divisors (6935).

117589 is an equidigital number, since it uses as much as digits as its factorization.

117589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6934.

The product of its digits is 2520, while the sum is 31.

The square root of 117589 is about 342.9125252889. The cubic root of 117589 is about 48.9916687210.

The spelling of 117589 in words is "one hundred seventeen thousand, five hundred eighty-nine".

Divisors: 1 17 6917 117589