8534806021 has 32 divisors (see below), whose sum is σ = 10688654592. Its totient is φ = 6647546880.

The previous prime is 8534805977. The next prime is 8534806031. The reversal of 8534806021 is 1206084358.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8534806021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8534806031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 569395 + ... + 584191.

It is an arithmetic number, because the mean of its divisors is an integer number (334020456).

Almost surely, 2^8534806021 is an apocalyptic number.

It is an amenable number.

8534806021 is a deficient number, since it is larger than the sum of its proper divisors (2153848571).

8534806021 is a wasteful number, since it uses less digits than its factorization.

8534806021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14989.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 8534806021 is about 92384.0138822729. The cubic root of 8534806021 is about 2043.6093686260.

The spelling of 8534806021 in words is "eight billion, five hundred thirty-four million, eight hundred six thousand, twenty-one".