108870309 has 12 divisors (see below), whose sum is σ = 157599936. Its totient is φ = 72421992.

The previous prime is 108870287. The next prime is 108870331. The reversal of 108870309 is 903078801.

It is an interprime number because it is at equal distance from previous prime (108870287) and next prime (108870331).

It is not a de Polignac number, because 108870309 - 2¹² = 108866213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108870809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8749 + ... + 17154.

It is an arithmetic number, because the mean of its divisors is an integer number (13133328).

Almost surely, 2^108870309 is an apocalyptic number.

It is an amenable number.

108870309 is a deficient number, since it is larger than the sum of its proper divisors (48729627).

108870309 is a wasteful number, since it uses less digits than its factorization.

108870309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26376 (or 26373 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 108870309 is about 10434.0935878494. The cubic root of 108870309 is about 477.4960887082.

The spelling of 108870309 in words is "one hundred eight million, eight hundred seventy thousand, three hundred nine".