10091871 has 20 divisors (see below), whose sum is σ = 15733872. Its totient is φ = 6434208.

The previous prime is 10091839. The next prime is 10091899. The reversal of 10091871 is 17819001.

It is not a de Polignac number, because 10091871 - 2⁵ = 10091839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10091821) 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 19 ways as a sum of consecutive naturals, for example, 846 + ... + 4571.

Almost surely, 2^10091871 is an apocalyptic number.

10091871 is a deficient number, since it is larger than the sum of its proper divisors (5642001).

10091871 is an equidigital number, since it uses as much as digits as its factorization.

10091871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452 (or 5443 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 10091871 is about 3176.7705299565. The cubic root of 10091871 is about 216.1012257026.

The spelling of 10091871 in words is "ten million, ninety-one thousand, eight hundred seventy-one".