83913856 has 64 divisors (see below), whose sum is σ = 181641600. Its totient is φ = 38384640.

The previous prime is 83913833. The next prime is 83913859. The reversal of 83913856 is 65831938.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (83913859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350985 + ... + 351223.

It is an arithmetic number, because the mean of its divisors is an integer number (2838150).

Almost surely, 2^83913856 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 83913856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90820800).

83913856 is an abundant number, since it is smaller than the sum of its proper divisors (97727744).

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

83913856 is a wasteful number, since it uses less digits than its factorization.

83913856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 465 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 83913856 is about 9160.4506439367. The cubic root of 83913856 is about 437.8021527441.

The spelling of 83913856 in words is "eighty-three million, nine hundred thirteen thousand, eight hundred fifty-six".