87547 has 2 divisors, whose sum is σ = 87548. Its totient is φ = 87546.

The previous prime is 87541. The next prime is 87553. The reversal of 87547 is 74578.

It is a happy number.

87547 is nontrivially palindromic in base 6.

It is a balanced prime because it is at equal distance from previous prime (87541) and next prime (87553).

87547 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 87547 - 2³ = 87539 is a prime.

It is not a weakly prime, because it can be changed into another prime (87541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43773 + 43774.

It is an arithmetic number, because the mean of its divisors is an integer number (43774).

2⁸⁷⁵⁴⁷ is an apocalyptic number.

87547 is a deficient number, since it is larger than the sum of its proper divisors (1).

87547 is an equidigital number, since it uses as much as digits as its factorization.

87547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7840, while the sum is 31.

The square root of 87547 is about 295.8834229895. The cubic root of 87547 is about 44.4031475192.

Adding to 87547 its sum of digits (31), we get a palindrome (87578).

The spelling of 87547 in words is "eighty-seven thousand, five hundred forty-seven".