65487 has 8 divisors (see below), whose sum is σ = 88704. Its totient is φ = 42968.

The previous prime is 65479. The next prime is 65497. The reversal of 65487 is 78456.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65487 - 2³ = 65479 is a prime.

It is a zygodrome in base 2.

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 65487.

It is not an unprimeable number, because it can be changed into a prime (65407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118 + ... + 380.

It is an arithmetic number, because the mean of its divisors is an integer number (11088).

65487 is a Friedman number, since it can be written as 7-56+4^8, using all its digits and the basic arithmetic operations.

2⁶⁵⁴⁸⁷ is an apocalyptic number.

65487 is a deficient number, since it is larger than the sum of its proper divisors (23217).

65487 is a wasteful number, since it uses less digits than its factorization.

65487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349.

The product of its digits is 6720, while the sum is 30.

The square root of 65487 is about 255.9042789795. The cubic root of 65487 is about 40.3074228928.

It can be divided in two parts, 6548 and 7, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 65487 in words is "sixty-five thousand, four hundred eighty-seven".