471371987 has 2 divisors, whose sum is σ = 471371988. Its totient is φ = 471371986.

The previous prime is 471371963. The next prime is 471372017. The reversal of 471371987 is 789173174.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 471371987 - 2¹⁴ = 471355603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (471370987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235685993 + 235685994.

It is an arithmetic number, because the mean of its divisors is an integer number (235685994).

Almost surely, 2^471371987 is an apocalyptic number.

471371987 is a deficient number, since it is larger than the sum of its proper divisors (1).

471371987 is an equidigital number, since it uses as much as digits as its factorization.

471371987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 47.

The square root of 471371987 is about 21711.1028508457. The cubic root of 471371987 is about 778.2538117789.

The spelling of 471371987 in words is "four hundred seventy-one million, three hundred seventy-one thousand, nine hundred eighty-seven".