109944821 has 8 divisors (see below), whose sum is σ = 128716224. Its totient is φ = 91939680.

The previous prime is 109944803. The next prime is 109944823. The reversal of 109944821 is 128449901.

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

It is a de Polignac number, because none of the positive numbers 2^k-109944821 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109944823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191255 + ... + 191828.

It is an arithmetic number, because the mean of its divisors is an integer number (16089528).

Almost surely, 2^109944821 is an apocalyptic number.

It is an amenable number.

109944821 is a deficient number, since it is larger than the sum of its proper divisors (18771403).

109944821 is an equidigital number, since it uses as much as digits as its factorization.

109944821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383131.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 109944821 is about 10485.4575961185. The cubic root of 109944821 is about 479.0618554104.

The spelling of 109944821 in words is "one hundred nine million, nine hundred forty-four thousand, eight hundred twenty-one".