84308805 has 24 divisors (see below), whose sum is σ = 167012352. Its totient is φ = 38541024.

The previous prime is 84308803. The next prime is 84308839. The reversal of 84308805 is 50880348.

It is not a de Polignac number, because 84308805 - 2¹ = 84308803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84308805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84308801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133509 + ... + 134138.

It is an arithmetic number, because the mean of its divisors is an integer number (6958848).

Almost surely, 2^84308805 is an apocalyptic number.

It is an amenable number.

84308805 is a deficient number, since it is larger than the sum of its proper divisors (82703547).

84308805 is a wasteful number, since it uses less digits than its factorization.

84308805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267665 (or 267662 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 84308805 is about 9181.9826290404. The cubic root of 84308805 is about 438.4879312545.

The spelling of 84308805 in words is "eighty-four million, three hundred eight thousand, eight hundred five".