83749523 has 16 divisors (see below), whose sum is σ = 100014432. Its totient is φ = 69120000.

The previous prime is 83749517. The next prime is 83749553. The reversal of 83749523 is 32594738.

It is a cyclic number.

It is not a de Polignac number, because 83749523 - 2¹² = 83745427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83749513) 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 in 15 ways as a sum of consecutive naturals, for example, 3923 + ... + 13523.

It is an arithmetic number, because the mean of its divisors is an integer number (6250902).

Almost surely, 2^83749523 is an apocalyptic number.

83749523 is a deficient number, since it is larger than the sum of its proper divisors (16264909).

83749523 is a wasteful number, since it uses less digits than its factorization.

83749523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686.

The product of its digits is 181440, while the sum is 41.

The square root of 83749523 is about 9151.4765475305. The cubic root of 83749523 is about 437.5161755108.

The spelling of 83749523 in words is "eighty-three million, seven hundred forty-nine thousand, five hundred twenty-three".