85584121 has 4 divisors (see below), whose sum is σ = 97810432. Its totient is φ = 73357812.

The previous prime is 85584119. The next prime is 85584193. The reversal of 85584121 is 12148558.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12148558 = 2 ⋅6074279.

It is a cyclic number.

It is not a de Polignac number, because 85584121 - 2¹ = 85584119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85504121) 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, 6113145 + ... + 6113158.

It is an arithmetic number, because the mean of its divisors is an integer number (24452608).

Almost surely, 2^85584121 is an apocalyptic number.

It is an amenable number.

85584121 is a deficient number, since it is larger than the sum of its proper divisors (12226311).

85584121 is a wasteful number, since it uses less digits than its factorization.

85584121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12226310.

The product of its digits is 12800, while the sum is 34.

The square root of 85584121 is about 9251.1686288814. The cubic root of 85584121 is about 440.6878377328.

The spelling of 85584121 in words is "eighty-five million, five hundred eighty-four thousand, one hundred twenty-one".