471731387 has 2 divisors, whose sum is σ = 471731388. Its totient is φ = 471731386.

The previous prime is 471731333. The next prime is 471731423. The reversal of 471731387 is 783137174.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 471731387 - 2²⁶ = 404622523 is a prime.

It is not a weakly prime, because it can be changed into another prime (471731327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235865693 + 235865694.

It is an arithmetic number, because the mean of its divisors is an integer number (235865694).

Almost surely, 2^471731387 is an apocalyptic number.

471731387 is a deficient number, since it is larger than the sum of its proper divisors (1).

471731387 is an equidigital number, since it uses as much as digits as its factorization.

471731387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 41.

The square root of 471731387 is about 21719.3781448733. The cubic root of 471731387 is about 778.4515560732.

The spelling of 471731387 in words is "four hundred seventy-one million, seven hundred thirty-one thousand, three hundred eighty-seven".