108391697 has 4 divisors (see below), whose sum is σ = 108415296. Its totient is φ = 108368100.

The previous prime is 108391651. The next prime is 108391721. The reversal of 108391697 is 796193801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108391697 - 2¹⁴ = 108375313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108391607) 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, 2429 + ... + 14922.

It is an arithmetic number, because the mean of its divisors is an integer number (27103824).

Almost surely, 2^108391697 is an apocalyptic number.

It is an amenable number.

108391697 is a deficient number, since it is larger than the sum of its proper divisors (23599).

108391697 is an equidigital number, since it uses as much as digits as its factorization.

108391697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23598.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 108391697 is about 10411.1333196727. The cubic root of 108391697 is about 476.7953434099.

The spelling of 108391697 in words is "one hundred eight million, three hundred ninety-one thousand, six hundred ninety-seven".