83439123 has 8 divisors (see below), whose sum is σ = 111611136. Its totient is φ = 55446600.

The previous prime is 83439121. The next prime is 83439131. The reversal of 83439123 is 32193438.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83439123 - 2¹ = 83439121 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (83439121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43783 + ... + 45648.

It is an arithmetic number, because the mean of its divisors is an integer number (13951392).

Almost surely, 2^83439123 is an apocalyptic number.

83439123 is a deficient number, since it is larger than the sum of its proper divisors (28172013).

83439123 is a wasteful number, since it uses less digits than its factorization.

83439123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89745.

The product of its digits is 15552, while the sum is 33.

The square root of 83439123 is about 9134.5017926540. The cubic root of 83439123 is about 436.9749857825.

The spelling of 83439123 in words is "eighty-three million, four hundred thirty-nine thousand, one hundred twenty-three".