117728441 has 4 divisors (see below), whose sum is σ = 117756672. Its totient is φ = 117700212.

The previous prime is 117728431. The next prime is 117728459. The reversal of 117728441 is 144827711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117728441 - 2¹⁰ = 117727417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117728431) 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, 6485 + ... + 16658.

It is an arithmetic number, because the mean of its divisors is an integer number (29439168).

Almost surely, 2^117728441 is an apocalyptic number.

It is an amenable number.

117728441 is a deficient number, since it is larger than the sum of its proper divisors (28231).

117728441 is an equidigital number, since it uses as much as digits as its factorization.

117728441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28230.

The product of its digits is 12544, while the sum is 35.

The square root of 117728441 is about 10850.2737753478. The cubic root of 117728441 is about 490.1102639542.

The spelling of 117728441 in words is "one hundred seventeen million, seven hundred twenty-eight thousand, four hundred forty-one".