109992897 has 80 divisors (see below), whose sum is σ = 198633600. Its totient is φ = 60582816.

The previous prime is 109992893. The next prime is 109992901. The reversal of 109992897 is 798299901.

It is an interprime number because it is at equal distance from previous prime (109992893) and next prime (109992901).

It is not a de Polignac number, because 109992897 - 2² = 109992893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109992893) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1027918 + ... + 1028024.

It is an arithmetic number, because the mean of its divisors is an integer number (2482920).

Almost surely, 2^109992897 is an apocalyptic number.

It is an amenable number.

109992897 is a deficient number, since it is larger than the sum of its proper divisors (88640703).

109992897 is an equidigital number, since it uses as much as digits as its factorization.

109992897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 54.

The square root of 109992897 is about 10487.7498539963. The cubic root of 109992897 is about 479.1316723160.

It can be divided in two parts, 109992 and 897, that added together give a square (110889 = 333²).

The spelling of 109992897 in words is "one hundred nine million, nine hundred ninety-two thousand, eight hundred ninety-seven".