84065849 has 4 divisors (see below), whose sum is σ = 96075264. Its totient is φ = 72056436.

The previous prime is 84065843. The next prime is 84065857. The reversal of 84065849 is 94856048.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 84065849 - 2⁸ = 84065593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84065843) 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 3 ways as a sum of consecutive naturals, for example, 6004697 + ... + 6004710.

It is an arithmetic number, because the mean of its divisors is an integer number (24018816).

Almost surely, 2^84065849 is an apocalyptic number.

It is an amenable number.

84065849 is a deficient number, since it is larger than the sum of its proper divisors (12009415).

84065849 is a wasteful number, since it uses less digits than its factorization.

84065849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12009414.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 84065849 is about 9168.7430436238. The cubic root of 84065849 is about 438.0663233664.

The spelling of 84065849 in words is "eighty-four million, sixty-five thousand, eight hundred forty-nine".