84585261 has 8 divisors (see below), whose sum is σ = 113943424. Its totient is φ = 55808640.

The previous prime is 84585239. The next prime is 84585269. The reversal of 84585261 is 16258548.

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

It is not a de Polignac number, because 84585261 - 2⁹ = 84584749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84585269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145045 + ... + 145626.

It is an arithmetic number, because the mean of its divisors is an integer number (14242928).

Almost surely, 2^84585261 is an apocalyptic number.

It is an amenable number.

84585261 is a deficient number, since it is larger than the sum of its proper divisors (29358163).

84585261 is a wasteful number, since it uses less digits than its factorization.

84585261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290771.

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

The square root of 84585261 is about 9197.0245731976. The cubic root of 84585261 is about 438.9666885266.

The spelling of 84585261 in words is "eighty-four million, five hundred eighty-five thousand, two hundred sixty-one".