8542891 has 8 divisors (see below), whose sum is σ = 10337760. Its totient is φ = 6891648.

The previous prime is 8542879. The next prime is 8542927. The reversal of 8542891 is 1982458.

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 8542891 - 2¹³ = 8534699 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8542891.

It is not an unprimeable number, because it can be changed into a prime (8542811) 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, 35776 + ... + 36013.

It is an arithmetic number, because the mean of its divisors is an integer number (1292220).

Almost surely, 2^8542891 is an apocalyptic number.

8542891 is a deficient number, since it is larger than the sum of its proper divisors (1794869).

8542891 is a wasteful number, since it uses less digits than its factorization.

8542891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71813.

The product of its digits is 23040, while the sum is 37.

The square root of 8542891 is about 2922.8224373027. The cubic root of 8542891 is about 204.4254465277.

The spelling of 8542891 in words is "eight million, five hundred forty-two thousand, eight hundred ninety-one".