109980635 has 4 divisors (see below), whose sum is σ = 131976768. Its totient is φ = 87984504.

The previous prime is 109980631. The next prime is 109980659. The reversal of 109980635 is 536089901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 536089901 = 43 ⋅12467207.

It is a cyclic number.

It is not a de Polignac number, because 109980635 - 2² = 109980631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109980592 and 109980601.

It is not an unprimeable number, because it can be changed into a prime (109980631) 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, 10998059 + ... + 10998068.

It is an arithmetic number, because the mean of its divisors is an integer number (32994192).

Almost surely, 2^109980635 is an apocalyptic number.

109980635 is a deficient number, since it is larger than the sum of its proper divisors (21996133).

109980635 is an equidigital number, since it uses as much as digits as its factorization.

109980635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21996132.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 109980635 is about 10487.1652509150. The cubic root of 109980635 is about 479.1138671333.

The spelling of 109980635 in words is "one hundred nine million, nine hundred eighty thousand, six hundred thirty-five".