848491281 has 20 divisors (see below), whose sum is σ = 1382727984. Its totient is φ = 514236600.

The previous prime is 848491277. The next prime is 848491327. The reversal of 848491281 is 182194848.

848491281 is a `hidden beast` number, since 8 + 484 + 91 + 2 + 81 = 666.

It is not a de Polignac number, because 848491281 - 2² = 848491277 is a prime.

It is a super-2 number, since 2×848491281² = 1439874907866041922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (848491211) 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, 475255 + ... + 477036.

Almost surely, 2^848491281 is an apocalyptic number.

848491281 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

848491281 is a deficient number, since it is larger than the sum of its proper divisors (534236703).

848491281 is a wasteful number, since it uses less digits than its factorization.

848491281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952314 (or 952305 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 848491281 is about 29128.8736651454. The cubic root of 848491281 is about 946.7074497380.

The spelling of 848491281 in words is "eight hundred forty-eight million, four hundred ninety-one thousand, two hundred eighty-one".