84699221 has 8 divisors (see below), whose sum is σ = 85662720. Its totient is φ = 83740608.

The previous prime is 84699211. The next prime is 84699239. The reversal of 84699221 is 12299648.

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 84699221 - 2⁶ = 84699157 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 (84699211) 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 7 ways as a sum of consecutive naturals, for example, 41810 + ... + 43788.

It is an arithmetic number, because the mean of its divisors is an integer number (10707840).

Almost surely, 2^84699221 is an apocalyptic number.

It is an amenable number.

84699221 is a deficient number, since it is larger than the sum of its proper divisors (963499).

84699221 is a wasteful number, since it uses less digits than its factorization.

84699221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443.

The product of its digits is 62208, while the sum is 41.

The square root of 84699221 is about 9203.2179698190. The cubic root of 84699221 is about 439.1637370207.

The spelling of 84699221 in words is "eighty-four million, six hundred ninety-nine thousand, two hundred twenty-one".