84549745 has 24 divisors (see below), whose sum is σ = 118445544. Its totient is φ = 57770496.

The previous prime is 84549743. The next prime is 84549767. The reversal of 84549745 is 54794548.

It can be written as a sum of positive squares in 4 ways, for example, as 717409 + 83832336 = 847^2 + 9156^2 .

It is not a de Polignac number, because 84549745 - 2¹ = 84549743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84549695 and 84549704.

It is not an unprimeable number, because it can be changed into a prime (84549743) 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, 105687 + ... + 106483.

It is an arithmetic number, because the mean of its divisors is an integer number (4935231).

Almost surely, 2^84549745 is an apocalyptic number.

It is an amenable number.

84549745 is a deficient number, since it is larger than the sum of its proper divisors (33895799).

84549745 is a wasteful number, since it uses less digits than its factorization.

84549745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1242 counting only the distinct ones).

The product of its digits is 806400, while the sum is 46.

The square root of 84549745 is about 9195.0935286162. The cubic root of 84549745 is about 438.9052415587.

The spelling of 84549745 in words is "eighty-four million, five hundred forty-nine thousand, seven hundred forty-five".