83445656 has 128 divisors (see below), whose sum is σ = 204871680. Its totient is φ = 31021056.

The previous prime is 83445653. The next prime is 83445667. The reversal of 83445656 is 65654438.

83445656 = T₄₄₈ + T₄₄₉ + ... + T₈₃₈.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83445653) 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, 810101 + ... + 810203.

It is an arithmetic number, because the mean of its divisors is an integer number (1600560).

Almost surely, 2^83445656 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 83445656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102435840).

83445656 is an abundant number, since it is smaller than the sum of its proper divisors (121426024).

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

83445656 is a wasteful number, since it uses less digits than its factorization.

83445656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 189 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The square root of 83445656 is about 9134.8593858910. The cubic root of 83445656 is about 436.9863900374.

The spelling of 83445656 in words is "eighty-three million, four hundred forty-five thousand, six hundred fifty-six".