83889221 has 8 divisors (see below), whose sum is σ = 90499584. Its totient is φ = 77301360.

The previous prime is 83889181. The next prime is 83889233. The reversal of 83889221 is 12298838.

It is a happy number.

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 83889221 - 2¹⁰ = 83888197 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 (83889241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2576 + ... + 13206.

It is an arithmetic number, because the mean of its divisors is an integer number (11312448).

Almost surely, 2^83889221 is an apocalyptic number.

It is an amenable number.

83889221 is a deficient number, since it is larger than the sum of its proper divisors (6610363).

83889221 is a wasteful number, since it uses less digits than its factorization.

83889221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11251.

The product of its digits is 55296, while the sum is 41.

The square root of 83889221 is about 9159.1059061461. The cubic root of 83889221 is about 437.7593059798.

The spelling of 83889221 in words is "eighty-three million, eight hundred eighty-nine thousand, two hundred twenty-one".