83244521 has 4 divisors (see below), whose sum is σ = 86863872. Its totient is φ = 79625172.

The previous prime is 83244481. The next prime is 83244547. The reversal of 83244521 is 12544238.

It is a happy number.

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 not a de Polignac number, because 83244521 - 2¹⁰ = 83243497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83246521) 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, 1809641 + ... + 1809686.

It is an arithmetic number, because the mean of its divisors is an integer number (21715968).

Almost surely, 2^83244521 is an apocalyptic number.

It is an amenable number.

83244521 is a deficient number, since it is larger than the sum of its proper divisors (3619351).

83244521 is a wasteful number, since it uses less digits than its factorization.

83244521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619350.

The product of its digits is 7680, while the sum is 29.

The square root of 83244521 is about 9123.8435431566. The cubic root of 83244521 is about 436.6350077728.

Adding to 83244521 its reverse (12544238), we get a palindrome (95788759).

The spelling of 83244521 in words is "eighty-three million, two hundred forty-four thousand, five hundred twenty-one".