83438523 has 48 divisors (see below), whose sum is σ = 142272000. Its totient is φ = 47098800.

The previous prime is 83438497. The next prime is 83438543. The reversal of 83438523 is 32583438.

It is not a de Polignac number, because 83438523 - 2⁵ = 83438491 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (83438543) 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 47 ways as a sum of consecutive naturals, for example, 466048 + ... + 466226.

It is an arithmetic number, because the mean of its divisors is an integer number (2964000).

Almost surely, 2^83438523 is an apocalyptic number.

83438523 is a deficient number, since it is larger than the sum of its proper divisors (58833477).

83438523 is a wasteful number, since it uses less digits than its factorization.

83438523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 340 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 83438523 is about 9134.4689500813. The cubic root of 83438523 is about 436.9739383697.

The spelling of 83438523 in words is "eighty-three million, four hundred thirty-eight thousand, five hundred twenty-three".