84136485 has 16 divisors (see below), whose sum is σ = 142537536. Its totient is φ = 42233088.

The previous prime is 84136463. The next prime is 84136487. The reversal of 84136485 is 58463148.

It is not a de Polignac number, because 84136485 - 2⁹ = 84135973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84136487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164719 + ... + 165228.

It is an arithmetic number, because the mean of its divisors is an integer number (8908596).

Almost surely, 2^84136485 is an apocalyptic number.

84136485 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84136485 is a deficient number, since it is larger than the sum of its proper divisors (58401051).

84136485 is a wasteful number, since it uses less digits than its factorization.

84136485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329972.

The product of its digits is 92160, while the sum is 39.

The square root of 84136485 is about 9172.5942350024. The cubic root of 84136485 is about 438.1889835214.

The spelling of 84136485 in words is "eighty-four million, one hundred thirty-six thousand, four hundred eighty-five".