83487239 has 8 divisors (see below), whose sum is σ = 91162368. Its totient is φ = 75826360.

The previous prime is 83487203. The next prime is 83487269. The reversal of 83487239 is 93278438.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83487239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83487239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83487269) 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, 11474 + ... + 17280.

It is an arithmetic number, because the mean of its divisors is an integer number (11395296).

Almost surely, 2^83487239 is an apocalyptic number.

83487239 is a deficient number, since it is larger than the sum of its proper divisors (7675129).

83487239 is a wasteful number, since it uses less digits than its factorization.

83487239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7125.

The product of its digits is 290304, while the sum is 44.

The square root of 83487239 is about 9137.1351637152. The cubic root of 83487239 is about 437.0589649657.

The spelling of 83487239 in words is "eighty-three million, four hundred eighty-seven thousand, two hundred thirty-nine".