84443076 has 18 divisors (see below), whose sum is σ = 213453422. Its totient is φ = 28147680.

The previous prime is 84443053. The next prime is 84443077. The reversal of 84443076 is 67034448.

It can be written as a sum of positive squares in only one way, i.e., 70560000 + 13883076 = 8400^2 + 3726^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2345641 = 84443076 / (8 + 4 + 4 + 4 + 3 + 0 + 7 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 84443076.

It is not an unprimeable number, because it can be changed into a prime (84443077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1172785 + ... + 1172856.

Almost surely, 2^84443076 is an apocalyptic number.

It is an amenable number.

84443076 is an abundant number, since it is smaller than the sum of its proper divisors (129010346).

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

84443076 is a wasteful number, since it uses less digits than its factorization.

84443076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345651 (or 2345646 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 84443076 is about 9189.2913763794. The cubic root of 84443076 is about 438.7205877963.

The spelling of 84443076 in words is "eighty-four million, four hundred forty-three thousand, seventy-six".