108957871 has 4 divisors (see below), whose sum is σ = 118863144. Its totient is φ = 99052600.

The previous prime is 108957851. The next prime is 108957899. The reversal of 108957871 is 178759801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108957871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108957851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4952620 + ... + 4952641.

It is an arithmetic number, because the mean of its divisors is an integer number (29715786).

Almost surely, 2^108957871 is an apocalyptic number.

108957871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

108957871 is the 5580-th centered heptagonal number.

108957871 is a deficient number, since it is larger than the sum of its proper divisors (9905273).

108957871 is an equidigital number, since it uses as much as digits as its factorization.

108957871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9905272.

The product of its (nonzero) digits is 141120, while the sum is 46.

The square root of 108957871 is about 10438.2887007402. The cubic root of 108957871 is about 477.6240676121.

The spelling of 108957871 in words is "one hundred eight million, nine hundred fifty-seven thousand, eight hundred seventy-one".