83625879 has 32 divisors (see below), whose sum is σ = 120637440. Its totient is φ = 51408000.

The previous prime is 83625877. The next prime is 83625887. The reversal of 83625879 is 97852638.

It is not a de Polignac number, because 83625879 - 2¹ = 83625877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83625877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272244 + ... + 272550.

It is an arithmetic number, because the mean of its divisors is an integer number (3769920).

Almost surely, 2^83625879 is an apocalyptic number.

83625879 is a deficient number, since it is larger than the sum of its proper divisors (37011561).

83625879 is a wasteful number, since it uses less digits than its factorization.

83625879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471.

The product of its digits is 725760, while the sum is 48.

The square root of 83625879 is about 9144.7186397396. The cubic root of 83625879 is about 437.3007597819.

It can be divided in two parts, 8362 and 5879, that added together give a palindrome (14241).

The spelling of 83625879 in words is "eighty-three million, six hundred twenty-five thousand, eight hundred seventy-nine".