481331887 has 2 divisors, whose sum is σ = 481331888. Its totient is φ = 481331886.

The previous prime is 481331881. The next prime is 481331941. The reversal of 481331887 is 788133184.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481331887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481331881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240665943 + 240665944.

It is an arithmetic number, because the mean of its divisors is an integer number (240665944).

Almost surely, 2^481331887 is an apocalyptic number.

481331887 is a deficient number, since it is larger than the sum of its proper divisors (1).

481331887 is an equidigital number, since it uses as much as digits as its factorization.

481331887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 43.

The square root of 481331887 is about 21939.2772670387. The cubic root of 481331887 is about 783.6970485183.

The spelling of 481331887 in words is "four hundred eighty-one million, three hundred thirty-one thousand, eight hundred eighty-seven".