481898909 has 4 divisors (see below), whose sum is σ = 483602016. Its totient is φ = 480195804.

The previous prime is 481898903. The next prime is 481898917. The reversal of 481898909 is 909898184.

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 a de Polignac number, because none of the positive numbers 2^k-481898909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481898903) 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, 851129 + ... + 851694.

It is an arithmetic number, because the mean of its divisors is an integer number (120900504).

Almost surely, 2^481898909 is an apocalyptic number.

It is an amenable number.

481898909 is a deficient number, since it is larger than the sum of its proper divisors (1703107).

481898909 is a wasteful number, since it uses less digits than its factorization.

481898909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703106.

The product of its (nonzero) digits is 1492992, while the sum is 56.

The square root of 481898909 is about 21952.1959949341. The cubic root of 481898909 is about 784.0046665391.

The spelling of 481898909 in words is "four hundred eighty-one million, eight hundred ninety-eight thousand, nine hundred nine".