83445443 has 2 divisors, whose sum is σ = 83445444. Its totient is φ = 83445442.

The previous prime is 83445437. The next prime is 83445491. The reversal of 83445443 is 34454438.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83445443 is a prime.

It is equal to p_4858613 and since 83445443 and 4858613 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (83445433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41722721 + 41722722.

It is an arithmetic number, because the mean of its divisors is an integer number (41722722).

Almost surely, 2^83445443 is an apocalyptic number.

83445443 is a deficient number, since it is larger than the sum of its proper divisors (1).

83445443 is an equidigital number, since it uses as much as digits as its factorization.

83445443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 35.

The square root of 83445443 is about 9134.8477272476. The cubic root of 83445443 is about 436.9860182258.

The spelling of 83445443 in words is "eighty-three million, four hundred forty-five thousand, four hundred forty-three".