854621847 has 20 divisors (see below), whose sum is σ = 1277486056. Its totient is φ = 569378160.

The previous prime is 854621791. The next prime is 854621849. The reversal of 854621847 is 748126458.

854621847 is a `hidden beast` number, since 8 + 5 + 462 + 184 + 7 = 666.

It is not a de Polignac number, because 854621847 - 2¹⁴ = 854605463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854621849) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 187368 + ... + 191874.

Almost surely, 2^854621847 is an apocalyptic number.

854621847 is a deficient number, since it is larger than the sum of its proper divisors (422864209).

854621847 is a wasteful number, since it uses less digits than its factorization.

854621847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6860 (or 6851 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 854621847 is about 29233.9160394224. The cubic root of 854621847 is about 948.9820479445.

The spelling of 854621847 in words is "eight hundred fifty-four million, six hundred twenty-one thousand, eight hundred forty-seven".