83945860 has 48 divisors (see below), whose sum is σ = 188479872. Its totient is φ = 31328000.

The previous prime is 83945833. The next prime is 83945867. The reversal of 83945860 is 6854938.

It is a super-2 number, since 2×83945860² = 14093814822279200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83945867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16635 + ... + 21085.

It is an arithmetic number, because the mean of its divisors is an integer number (3926664).

Almost surely, 2^83945860 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 83945860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94239936).

83945860 is an abundant number, since it is smaller than the sum of its proper divisors (104534012).

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

83945860 is a wasteful number, since it uses less digits than its factorization.

83945860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524 (or 4522 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 83945860 is about 9162.1973347009. The cubic root of 83945860 is about 437.8578036218.

The spelling of 83945860 in words is "eighty-three million, nine hundred forty-five thousand, eight hundred sixty".