84404673 has 20 divisors (see below), whose sum is σ = 128471508. Its totient is φ = 55205280.

The previous prime is 84404651. The next prime is 84404693. The reversal of 84404673 is 37640448.

It can be written as a sum of positive squares in 2 ways, for example, as 54066609 + 30338064 = 7353^2 + 5508^2 .

It is not a de Polignac number, because 84404673 - 2¹² = 84400577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84404623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5538 + ... + 14123.

Almost surely, 2^84404673 is an apocalyptic number.

It is an amenable number.

84404673 is a deficient number, since it is larger than the sum of its proper divisors (44066835).

84404673 is a wasteful number, since it uses less digits than its factorization.

84404673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19726 (or 19717 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 84404673 is about 9187.2015869905. The cubic root of 84404673 is about 438.6540706337.

The spelling of 84404673 in words is "eighty-four million, four hundred four thousand, six hundred seventy-three".