84440653 has 12 divisors (see below), whose sum is σ = 93697344. Its totient is φ = 75469200.

The previous prime is 84440647. The next prime is 84440669. The reversal of 84440653 is 35604448.

It is not a de Polignac number, because 84440653 - 2¹⁷ = 84309581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84440353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39900 + ... + 41962.

It is an arithmetic number, because the mean of its divisors is an integer number (7808112).

Almost surely, 2^84440653 is an apocalyptic number.

It is an amenable number.

84440653 is a deficient number, since it is larger than the sum of its proper divisors (9256691).

84440653 is a wasteful number, since it uses less digits than its factorization.

84440653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196 (or 2135 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 84440653 is about 9189.1595371938. The cubic root of 84440653 is about 438.7163915566.

The spelling of 84440653 in words is "eighty-four million, four hundred forty thousand, six hundred fifty-three".