82983921 has 8 divisors (see below), whose sum is σ = 110943360. Its totient is φ = 55173552.

The previous prime is 82983883. The next prime is 82983941. The reversal of 82983921 is 12938928.

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

It is not a de Polignac number, because 82983921 - 2¹³ = 82975729 is a prime.

It is a super-2 number, since 2×82983921² = 13772662289068482, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (82983941) 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, 35961 + ... + 38198.

It is an arithmetic number, because the mean of its divisors is an integer number (13867920).

Almost surely, 2^82983921 is an apocalyptic number.

It is an amenable number.

82983921 is a deficient number, since it is larger than the sum of its proper divisors (27959439).

82983921 is a wasteful number, since it uses less digits than its factorization.

82983921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74535.

The product of its digits is 62208, while the sum is 42.

The square root of 82983921 is about 9109.5510866343. The cubic root of 82983921 is about 436.1788975616.

The spelling of 82983921 in words is "eighty-two million, nine hundred eighty-three thousand, nine hundred twenty-one".