83859040 has 24 divisors (see below), whose sum is σ = 198117360. Its totient is φ = 33543552.

The previous prime is 83859037. The next prime is 83859047. The reversal of 83859040 is 4095838.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83859047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261900 + ... + 262219.

It is an arithmetic number, because the mean of its divisors is an integer number (8254890).

Almost surely, 2^83859040 is an apocalyptic number.

83859040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83859040 is an abundant number, since it is smaller than the sum of its proper divisors (114258320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83859040 is a wasteful number, since it uses less digits than its factorization.

83859040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524134 (or 524126 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 83859040 is about 9157.4581626126. The cubic root of 83859040 is about 437.7068018233.

The spelling of 83859040 in words is "eighty-three million, eight hundred fifty-nine thousand, forty".