84307213 has 8 divisors (see below), whose sum is σ = 88072128. Its totient is φ = 80550624.

The previous prime is 84307211. The next prime is 84307217. The reversal of 84307213 is 31270348.

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

It is a cyclic number.

It is not a de Polignac number, because 84307213 - 2¹ = 84307211 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 (84307211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28081 + ... + 30937.

It is an arithmetic number, because the mean of its divisors is an integer number (11009016).

Almost surely, 2^84307213 is an apocalyptic number.

It is an amenable number.

84307213 is a deficient number, since it is larger than the sum of its proper divisors (3764915).

84307213 is a wasteful number, since it uses less digits than its factorization.

84307213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 84307213 is about 9181.8959371145. The cubic root of 84307213 is about 438.4851712534.

The spelling of 84307213 in words is "eighty-four million, three hundred seven thousand, two hundred thirteen".