111709897 has 8 divisors (see below), whose sum is σ = 120524544. Its totient is φ = 102926928.

The previous prime is 111709891. The next prime is 111709901. The reversal of 111709897 is 798907111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111709897 - 2²³ = 103321289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111709891) 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 7 ways as a sum of consecutive naturals, for example, 313 + ... + 14950.

It is an arithmetic number, because the mean of its divisors is an integer number (15065568).

Almost surely, 2^111709897 is an apocalyptic number.

It is an amenable number.

111709897 is a deficient number, since it is larger than the sum of its proper divisors (8814647).

111709897 is a wasteful number, since it uses less digits than its factorization.

111709897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15839.

The product of its (nonzero) digits is 31752, while the sum is 43.

The square root of 111709897 is about 10569.2902789166. The cubic root of 111709897 is about 481.6119087559.

The spelling of 111709897 in words is "one hundred eleven million, seven hundred nine thousand, eight hundred ninety-seven".