84314521 has 4 divisors (see below), whose sum is σ = 84831952. Its totient is φ = 83797092.

The previous prime is 84314449. The next prime is 84314537. The reversal of 84314521 is 12541348.

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 84314521 - 2⁷ = 84314393 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 84314521.

It is not an unprimeable number, because it can be changed into a prime (84314551) 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 3 ways as a sum of consecutive naturals, for example, 258471 + ... + 258796.

It is an arithmetic number, because the mean of its divisors is an integer number (21207988).

Almost surely, 2^84314521 is an apocalyptic number.

It is an amenable number.

84314521 is a deficient number, since it is larger than the sum of its proper divisors (517431).

84314521 is a wasteful number, since it uses less digits than its factorization.

84314521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517430.

The product of its digits is 3840, while the sum is 28.

The square root of 84314521 is about 9182.2938855168. The cubic root of 84314521 is about 438.4978406203.

Adding to 84314521 its reverse (12541348), we get a palindrome (96855869).

The spelling of 84314521 in words is "eighty-four million, three hundred fourteen thousand, five hundred twenty-one".