85584621 has 8 divisors (see below), whose sum is σ = 114272704. Its totient is φ = 56976480.

The previous prime is 85584601. The next prime is 85584623. The reversal of 85584621 is 12648558.

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

It is not a de Polignac number, because 85584621 - 2¹³ = 85576429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85584621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85584623) 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, 17440 + ... + 21801.

It is an arithmetic number, because the mean of its divisors is an integer number (14284088).

Almost surely, 2^85584621 is an apocalyptic number.

It is an amenable number.

85584621 is a deficient number, since it is larger than the sum of its proper divisors (28688083).

85584621 is a wasteful number, since it uses less digits than its factorization.

85584621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39971.

The product of its digits is 76800, while the sum is 39.

The square root of 85584621 is about 9251.1956524549. The cubic root of 85584621 is about 440.6886959273.

The spelling of 85584621 in words is "eighty-five million, five hundred eighty-four thousand, six hundred twenty-one".