88871891 has 8 divisors (see below), whose sum is σ = 91861200. Its totient is φ = 85913568.

The previous prime is 88871857. The next prime is 88871897. The reversal of 88871891 is 19817888.

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 88871891 - 2¹⁰ = 88870867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88871897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1841 + ... + 13458.

It is an arithmetic number, because the mean of its divisors is an integer number (11482650).

Almost surely, 2^88871891 is an apocalyptic number.

88871891 is a deficient number, since it is larger than the sum of its proper divisors (2989309).

88871891 is a wasteful number, since it uses less digits than its factorization.

88871891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15493.

The product of its digits is 258048, while the sum is 50.

The square root of 88871891 is about 9427.1889235339. The cubic root of 88871891 is about 446.2601842074.

The spelling of 88871891 in words is "eighty-eight million, eight hundred seventy-one thousand, eight hundred ninety-one".