891160047 has 12 divisors (see below), whose sum is σ = 1343198064. Its totient is φ = 568275840.

The previous prime is 891160033. The next prime is 891160057. The reversal of 891160047 is 740061198.

891160047 is a `hidden beast` number, since 8 + 9 + 1 + 1 + 600 + 47 = 666.

It is not a de Polignac number, because 891160047 - 2²² = 886965743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 891159993 and 891160020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891160027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2152354 + ... + 2152767.

It is an arithmetic number, because the mean of its divisors is an integer number (111933172).

Almost surely, 2^891160047 is an apocalyptic number.

891160047 is a deficient number, since it is larger than the sum of its proper divisors (452038017).

891160047 is a wasteful number, since it uses less digits than its factorization.

891160047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305150 (or 4305147 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 891160047 is about 29852.3038809402. The cubic root of 891160047 is about 962.3179112897.

The spelling of 891160047 in words is "eight hundred ninety-one million, one hundred sixty thousand, forty-seven".