481731487 has 2 divisors, whose sum is σ = 481731488. Its totient is φ = 481731486.

The previous prime is 481731479. The next prime is 481731517. The reversal of 481731487 is 784137184.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 481731487 - 2³ = 481731479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481731287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240865743 + 240865744.

It is an arithmetic number, because the mean of its divisors is an integer number (240865744).

Almost surely, 2^481731487 is an apocalyptic number.

481731487 is a deficient number, since it is larger than the sum of its proper divisors (1).

481731487 is an equidigital number, since it uses as much as digits as its factorization.

481731487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 43.

The square root of 481731487 is about 21948.3823321902. The cubic root of 481731487 is about 783.9138626861.

The spelling of 481731487 in words is "four hundred eighty-one million, seven hundred thirty-one thousand, four hundred eighty-seven".