82348921 has 4 divisors (see below), whose sum is σ = 82368000. Its totient is φ = 82329844.

The previous prime is 82348897. The next prime is 82348933. The reversal of 82348921 is 12984328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82348921 - 2¹³ = 82340729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82348621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360 + ... + 12838.

It is an arithmetic number, because the mean of its divisors is an integer number (20592000).

Almost surely, 2^82348921 is an apocalyptic number.

It is an amenable number.

82348921 is a deficient number, since it is larger than the sum of its proper divisors (19079).

82348921 is a wasteful number, since it uses less digits than its factorization.

82348921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19078.

The product of its digits is 27648, while the sum is 37.

The square root of 82348921 is about 9074.6306260916. The cubic root of 82348921 is about 435.0634883333.

The spelling of 82348921 in words is "eighty-two million, three hundred forty-eight thousand, nine hundred twenty-one".