85584641 has 4 divisors (see below), whose sum is σ = 85604784. Its totient is φ = 85564500.

The previous prime is 85584623. The next prime is 85584659. The reversal of 85584641 is 14648558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (85584623) and next prime (85584659).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85584641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85584601) 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, 935 + ... + 13116.

It is an arithmetic number, because the mean of its divisors is an integer number (21401196).

Almost surely, 2^85584641 is an apocalyptic number.

It is an amenable number.

85584641 is a deficient number, since it is larger than the sum of its proper divisors (20143).

85584641 is a wasteful number, since it uses less digits than its factorization.

85584641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20142.

The product of its digits is 153600, while the sum is 41.

The square root of 85584641 is about 9251.1967333962. The cubic root of 85584641 is about 440.6887302551.

The spelling of 85584641 in words is "eighty-five million, five hundred eighty-four thousand, six hundred forty-one".