83241021 has 4 divisors (see below), whose sum is σ = 110988032. Its totient is φ = 55494012.

The previous prime is 83241019. The next prime is 83241023. The reversal of 83241021 is 12014238.

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 an interprime number because it is at equal distance from previous prime (83241019) and next prime (83241023).

It is not a de Polignac number, because 83241021 - 2¹ = 83241019 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 (83241023) 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, 13873501 + ... + 13873506.

It is an arithmetic number, because the mean of its divisors is an integer number (27747008).

Almost surely, 2^83241021 is an apocalyptic number.

It is an amenable number.

83241021 is a deficient number, since it is larger than the sum of its proper divisors (27747011).

83241021 is a wasteful number, since it uses less digits than its factorization.

83241021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27747010.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 83241021 is about 9123.6517360101. The cubic root of 83241021 is about 436.6288882752.

Adding to 83241021 its reverse (12014238), we get a palindrome (95255259).

The spelling of 83241021 in words is "eighty-three million, two hundred forty-one thousand, twenty-one".