83621384 has 128 divisors (see below), whose sum is σ = 210124800. Its totient is φ = 30240000.

The previous prime is 83621383. The next prime is 83621387. The reversal of 83621384 is 48312638.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (83621383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 553709 + ... + 553859.

It is an arithmetic number, because the mean of its divisors is an integer number (1641600).

Almost surely, 2^83621384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83621384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105062400).

83621384 is an abundant number, since it is smaller than the sum of its proper divisors (126503416).

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

83621384 is a wasteful number, since it uses less digits than its factorization.

83621384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 231 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 83621384 is about 9144.4728661635. The cubic root of 83621384 is about 437.2929244796.

The spelling of 83621384 in words is "eighty-three million, six hundred twenty-one thousand, three hundred eighty-four".