83947135 has 8 divisors (see below), whose sum is σ = 101628720. Its totient is φ = 66562944.

The previous prime is 83947133. The next prime is 83947151. The reversal of 83947135 is 53174938.

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 83947135 - 2¹ = 83947133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83947133) 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, 73725 + ... + 74854.

It is an arithmetic number, because the mean of its divisors is an integer number (12703590).

Almost surely, 2^83947135 is an apocalyptic number.

83947135 is a deficient number, since it is larger than the sum of its proper divisors (17681585).

83947135 is a wasteful number, since it uses less digits than its factorization.

83947135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148697.

The product of its digits is 90720, while the sum is 40.

The square root of 83947135 is about 9162.2669138156. The cubic root of 83947135 is about 437.8600203913.

It can be divided in two parts, 839 and 47135, that added together give a palindrome (47974).

The spelling of 83947135 in words is "eighty-three million, nine hundred forty-seven thousand, one hundred thirty-five".