891876849 has 8 divisors (see below), whose sum is σ = 1189405152. Its totient is φ = 594466560.

The previous prime is 891876847. The next prime is 891876901. The reversal of 891876849 is 948678198.

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

It is not a de Polignac number, because 891876849 - 2¹ = 891876847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 891876792 and 891876801.

It is not an unprimeable number, because it can be changed into a prime (891876847) 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 7 ways as a sum of consecutive naturals, for example, 10032 + ... + 43409.

It is an arithmetic number, because the mean of its divisors is an integer number (148675644).

Almost surely, 2^891876849 is an apocalyptic number.

It is an amenable number.

891876849 is a deficient number, since it is larger than the sum of its proper divisors (297528303).

891876849 is a wasteful number, since it uses less digits than its factorization.

891876849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59007.

The product of its digits is 6967296, while the sum is 60.

The square root of 891876849 is about 29864.3072747385. The cubic root of 891876849 is about 962.5758546840.

The spelling of 891876849 in words is "eight hundred ninety-one million, eight hundred seventy-six thousand, eight hundred forty-nine".