82033921 has 8 divisors (see below), whose sum is σ = 84814784. Its totient is φ = 79282800.

The previous prime is 82033909. The next prime is 82033933. The reversal of 82033921 is 12933028.

It is an interprime number because it is at equal distance from previous prime (82033909) and next prime (82033933).

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 82033921 - 2⁷ = 82033793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82033921.

It is not an unprimeable number, because it can be changed into a prime (82033901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1755 + ... + 12928.

It is an arithmetic number, because the mean of its divisors is an integer number (10601848).

Almost surely, 2^82033921 is an apocalyptic number.

It is an amenable number.

82033921 is a deficient number, since it is larger than the sum of its proper divisors (2780863).

82033921 is a wasteful number, since it uses less digits than its factorization.

82033921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14871.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 82033921 is about 9057.2579183768. The cubic root of 82033921 is about 434.5080464795.

Adding to 82033921 its reverse (12933028), we get a palindrome (94966949).

The spelling of 82033921 in words is "eighty-two million, thirty-three thousand, nine hundred twenty-one".