108172870 has 32 divisors (see below), whose sum is σ = 222028128. Its totient is φ = 37590528.

The previous prime is 108172861. The next prime is 108172879. The reversal of 108172870 is 78271801.

It is an interprime number because it is at equal distance from previous prime (108172861) and next prime (108172879).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108172879) 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 15 ways as a sum of consecutive naturals, for example, 22264 + ... + 26683.

It is an arithmetic number, because the mean of its divisors is an integer number (6938379).

Almost surely, 2^108172870 is an apocalyptic number.

108172870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108172870 is an abundant number, since it is smaller than the sum of its proper divisors (113855258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108172870 is a wasteful number, since it uses less digits than its factorization.

108172870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48984.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 108172870 is about 10400.6187315948. The cubic root of 108172870 is about 476.4742671983.

The spelling of 108172870 in words is "one hundred eight million, one hundred seventy-two thousand, eight hundred seventy".