83525879 has 4 divisors (see below), whose sum is σ = 88439184. Its totient is φ = 78612576.

The previous prime is 83525867. The next prime is 83525921. The reversal of 83525879 is 97852538.

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 83525879 - 2⁸ = 83525623 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 (83525839) 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, 2456627 + ... + 2456660.

It is an arithmetic number, because the mean of its divisors is an integer number (22109796).

Almost surely, 2^83525879 is an apocalyptic number.

83525879 is a deficient number, since it is larger than the sum of its proper divisors (4913305).

83525879 is a wasteful number, since it uses less digits than its factorization.

83525879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913304.

The product of its digits is 604800, while the sum is 47.

The square root of 83525879 is about 9139.2493674262. The cubic root of 83525879 is about 437.1263818703.

The spelling of 83525879 in words is "eighty-three million, five hundred twenty-five thousand, eight hundred seventy-nine".