84618213 has 8 divisors (see below), whose sum is σ = 114736800. Its totient is φ = 55455888.

The previous prime is 84618199. The next prime is 84618221. The reversal of 84618213 is 31281648.

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

It is not a de Polignac number, because 84618213 - 2⁸ = 84617957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84618293) 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, 238858 + ... + 239211.

It is an arithmetic number, because the mean of its divisors is an integer number (14342100).

Almost surely, 2^84618213 is an apocalyptic number.

It is an amenable number.

84618213 is a deficient number, since it is larger than the sum of its proper divisors (30118587).

84618213 is a wasteful number, since it uses less digits than its factorization.

84618213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478131.

The product of its digits is 9216, while the sum is 33.

The square root of 84618213 is about 9198.8158477056. The cubic root of 84618213 is about 439.0236840843.

The spelling of 84618213 in words is "eighty-four million, six hundred eighteen thousand, two hundred thirteen".