84857473 has 8 divisors (see below), whose sum is σ = 85911336. Its totient is φ = 83808000.

The previous prime is 84857467. The next prime is 84857483. The reversal of 84857473 is 37475848.

It can be written as a sum of positive squares in 4 ways, for example, as 13082689 + 71774784 = 3617^2 + 8472^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84857473 - 2⁵ = 84857441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84857483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53865 + ... + 55417.

It is an arithmetic number, because the mean of its divisors is an integer number (10738917).

Almost surely, 2^84857473 is an apocalyptic number.

It is an amenable number.

84857473 is a deficient number, since it is larger than the sum of its proper divisors (1053863).

84857473 is a wasteful number, since it uses less digits than its factorization.

84857473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195.

The product of its digits is 752640, while the sum is 46.

The square root of 84857473 is about 9211.8116025025. The cubic root of 84857473 is about 439.4370779876.

The spelling of 84857473 in words is "eighty-four million, eight hundred fifty-seven thousand, four hundred seventy-three".