83842523 has 4 divisors (see below), whose sum is σ = 83992008. Its totient is φ = 83693040.

The previous prime is 83842513. The next prime is 83842529. The reversal of 83842523 is 32524838.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83842523 - 2²⁰ = 82793947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83842529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73898 + ... + 75023.

It is an arithmetic number, because the mean of its divisors is an integer number (20998002).

Almost surely, 2^83842523 is an apocalyptic number.

83842523 is a deficient number, since it is larger than the sum of its proper divisors (149485).

83842523 is a wasteful number, since it uses less digits than its factorization.

83842523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149484.

The product of its digits is 46080, while the sum is 35.

The square root of 83842523 is about 9156.5562849796. The cubic root of 83842523 is about 437.6780628110.

The spelling of 83842523 in words is "eighty-three million, eight hundred forty-two thousand, five hundred twenty-three".