84395945 has 16 divisors (see below), whose sum is σ = 105615360. Its totient is φ = 64661184.

The previous prime is 84395933. The next prime is 84395953. The reversal of 84395945 is 54959348.

It is not a de Polignac number, because 84395945 - 2⁶ = 84395881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84395945.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16124 + ... + 20706.

It is an arithmetic number, because the mean of its divisors is an integer number (6600960).

Almost surely, 2^84395945 is an apocalyptic number.

It is an amenable number.

84395945 is a deficient number, since it is larger than the sum of its proper divisors (21219415).

84395945 is a wasteful number, since it uses less digits than its factorization.

84395945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744.

The product of its digits is 777600, while the sum is 47.

The square root of 84395945 is about 9186.7265660844. The cubic root of 84395945 is about 438.6389502043.

The spelling of 84395945 in words is "eighty-four million, three hundred ninety-five thousand, nine hundred forty-five".