83400239 has 8 divisors (see below), whose sum is σ = 89893440. Its totient is φ = 76918176.

The previous prime is 83400227. The next prime is 83400293. The reversal of 83400239 is 93200438.

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

It is a cyclic number.

It is not a de Polignac number, because 83400239 - 2⁴ = 83400223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83400299) 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, 19322 + ... + 23240.

It is an arithmetic number, because the mean of its divisors is an integer number (11236680).

Almost surely, 2^83400239 is an apocalyptic number.

83400239 is a deficient number, since it is larger than the sum of its proper divisors (6493201).

83400239 is a wasteful number, since it uses less digits than its factorization.

83400239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 83400239 is about 9132.3731307914. The cubic root of 83400239 is about 436.9070960651.

The spelling of 83400239 in words is "eighty-three million, four hundred thousand, two hundred thirty-nine".