109527979 has 4 divisors (see below), whose sum is σ = 119485080. Its totient is φ = 99570880.

The previous prime is 109527967. The next prime is 109528021. The reversal of 109527979 is 979725901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109527979 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (109527949) 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, 4978534 + ... + 4978555.

It is an arithmetic number, because the mean of its divisors is an integer number (29871270).

Almost surely, 2^109527979 is an apocalyptic number.

109527979 is a deficient number, since it is larger than the sum of its proper divisors (9957101).

109527979 is an equidigital number, since it uses as much as digits as its factorization.

109527979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9957100.

The product of its (nonzero) digits is 357210, while the sum is 49.

The square root of 109527979 is about 10465.5615711724. The cubic root of 109527979 is about 478.4556543377.

The spelling of 109527979 in words is "one hundred nine million, five hundred twenty-seven thousand, nine hundred seventy-nine".