83868330 has 128 divisors (see below), whose sum is σ = 255983616. Its totient is φ = 17107200.

The previous prime is 83868311. The next prime is 83868331. The reversal of 83868330 is 3386838.

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

It is not an unprimeable number, because it can be changed into a prime (83868331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84135 + ... + 85125.

It is an arithmetic number, because the mean of its divisors is an integer number (1999872).

Almost surely, 2^83868330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83868330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127991808).

83868330 is an abundant number, since it is smaller than the sum of its proper divisors (172115286).

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

83868330 is a wasteful number, since it uses less digits than its factorization.

83868330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 83868330 is about 9157.9653853899. The cubic root of 83868330 is about 437.7229644459.

The spelling of 83868330 in words is "eighty-three million, eight hundred sixty-eight thousand, three hundred thirty".