83384021 has 8 divisors (see below), whose sum is σ = 95351424. Its totient is φ = 71430480.

The previous prime is 83383987. The next prime is 83384023. The reversal of 83384021 is 12048338.

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 83384021 - 2¹⁰ = 83382997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83384023) 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, 20471 + ... + 24203.

It is an arithmetic number, because the mean of its divisors is an integer number (11918928).

Almost surely, 2^83384021 is an apocalyptic number.

It is an amenable number.

83384021 is a deficient number, since it is larger than the sum of its proper divisors (11967403).

83384021 is a wasteful number, since it uses less digits than its factorization.

83384021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6931.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 83384021 is about 9131.4851475540. The cubic root of 83384021 is about 436.8787739295.

The spelling of 83384021 in words is "eighty-three million, three hundred eighty-four thousand, twenty-one".