481008809 has 2 divisors, whose sum is σ = 481008810. Its totient is φ = 481008808.

The previous prime is 481008799. The next prime is 481008811. The reversal of 481008809 is 908800184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345216400 + 135792409 = 18580^2 + 11653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481008809 is a prime.

It is a super-3 number, since 3×481008809³ (a number of 27 digits) contains 333 as substring.

Together with 481008811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (481008859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240504404 + 240504405.

It is an arithmetic number, because the mean of its divisors is an integer number (240504405).

Almost surely, 2^481008809 is an apocalyptic number.

It is an amenable number.

481008809 is a deficient number, since it is larger than the sum of its proper divisors (1).

481008809 is an equidigital number, since it uses as much as digits as its factorization.

481008809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 481008809 is about 21931.9130264553. The cubic root of 481008809 is about 783.5216657574.

The spelling of 481008809 in words is "four hundred eighty-one million, eight thousand, eight hundred nine".