83840367 has 16 divisors (see below), whose sum is σ = 123324768. Its totient is φ = 50334720.

The previous prime is 83840327. The next prime is 83840377. The reversal of 83840367 is 76304838.

It is not a de Polignac number, because 83840367 - 2⁶ = 83840303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83840327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24618 + ... + 27815.

It is an arithmetic number, because the mean of its divisors is an integer number (7707798).

Almost surely, 2^83840367 is an apocalyptic number.

83840367 is a deficient number, since it is larger than the sum of its proper divisors (39484401).

83840367 is a wasteful number, since it uses less digits than its factorization.

83840367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52490.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 83840367 is about 9156.4385543725. The cubic root of 83840367 is about 437.6743111666.

The spelling of 83840367 in words is "eighty-three million, eight hundred forty thousand, three hundred sixty-seven".