83528638 has 4 divisors (see below), whose sum is σ = 125292960. Its totient is φ = 41764318.

The previous prime is 83528629. The next prime is 83528639. The reversal of 83528638 is 83682538.

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

It is a super-2 number, since 2×83528638² = 13954066732270088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83528594 and 83528603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83528639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20882158 + ... + 20882161.

It is an arithmetic number, because the mean of its divisors is an integer number (31323240).

Almost surely, 2^83528638 is an apocalyptic number.

83528638 is a deficient number, since it is larger than the sum of its proper divisors (41764322).

83528638 is a wasteful number, since it uses less digits than its factorization.

83528638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41764321.

The product of its digits is 276480, while the sum is 43.

The square root of 83528638 is about 9139.4003085542. The cubic root of 83528638 is about 437.1311948234.

The spelling of 83528638 in words is "eighty-three million, five hundred twenty-eight thousand, six hundred thirty-eight".