481694209 has 4 divisors (see below), whose sum is σ = 481927104. Its totient is φ = 481461316.

The previous prime is 481694189. The next prime is 481694237. The reversal of 481694209 is 902496184.

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 481694209 - 2²⁵ = 448139777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481694249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113317 + ... + 117490.

It is an arithmetic number, because the mean of its divisors is an integer number (120481776).

Almost surely, 2^481694209 is an apocalyptic number.

It is an amenable number.

481694209 is a deficient number, since it is larger than the sum of its proper divisors (232895).

481694209 is a wasteful number, since it uses less digits than its factorization.

481694209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232894.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 481694209 is about 21947.5330959997. The cubic root of 481694209 is about 783.8936415356.

The spelling of 481694209 in words is "four hundred eighty-one million, six hundred ninety-four thousand, two hundred nine".