83523693 has 24 divisors (see below), whose sum is σ = 123210720. Its totient is φ = 49912320.

The previous prime is 83523691. The next prime is 83523719. The reversal of 83523693 is 39632538.

It is not a de Polignac number, because 83523693 - 2¹ = 83523691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83523691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310363 + ... + 310631.

It is an arithmetic number, because the mean of its divisors is an integer number (5133780).

Almost surely, 2^83523693 is an apocalyptic number.

It is an amenable number.

83523693 is a deficient number, since it is larger than the sum of its proper divisors (39687027).

83523693 is a wasteful number, since it uses less digits than its factorization.

83523693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 380 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 83523693 is about 9139.1297725768. The cubic root of 83523693 is about 437.1225684151.

It can be divided in two parts, 83 and 523693, that added together give a triangular number (523776 = T₁₀₂₃).

The spelling of 83523693 in words is "eighty-three million, five hundred twenty-three thousand, six hundred ninety-three".