108772913 has 4 divisors (see below), whose sum is σ = 108934260. Its totient is φ = 108611568.

The previous prime is 108772879. The next prime is 108772973. The reversal of 108772913 is 319277801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319277801 = 1879 ⋅169919.

It can be written as a sum of positive squares in 2 ways, for example, as 85895824 + 22877089 = 9268^2 + 4783^2 .

It is a cyclic number.

It is not a de Polignac number, because 108772913 - 2⁶ = 108772849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108772973) 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 3 ways as a sum of consecutive naturals, for example, 79658 + ... + 81011.

It is an arithmetic number, because the mean of its divisors is an integer number (27233565).

Almost surely, 2^108772913 is an apocalyptic number.

It is an amenable number.

108772913 is a deficient number, since it is larger than the sum of its proper divisors (161347).

108772913 is an equidigital number, since it uses as much as digits as its factorization.

108772913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161346.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 108772913 is about 10429.4253437090. The cubic root of 108772913 is about 477.3536559837.

The spelling of 108772913 in words is "one hundred eight million, seven hundred seventy-two thousand, nine hundred thirteen".