65879587 has 4 divisors (see below), whose sum is σ = 66558856. Its totient is φ = 65200320.

The previous prime is 65879537. The next prime is 65879603. The reversal of 65879587 is 78597856.

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

It is a cyclic number.

It is not a de Polignac number, because 65879587 - 2¹⁵ = 65846819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65879537) 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, 339489 + ... + 339682.

It is an arithmetic number, because the mean of its divisors is an integer number (16639714).

Almost surely, 2^65879587 is an apocalyptic number.

65879587 is a deficient number, since it is larger than the sum of its proper divisors (679269).

65879587 is an equidigital number, since it uses as much as digits as its factorization.

65879587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679268.

The product of its digits is 4233600, while the sum is 55.

The square root of 65879587 is about 8116.6241135093. The cubic root of 65879587 is about 403.8780858653.

It can be divided in two parts, 65879 and 587, that added together give a palindrome (66466).

The spelling of 65879587 in words is "sixty-five million, eight hundred seventy-nine thousand, five hundred eighty-seven".