471440987 has 2 divisors, whose sum is σ = 471440988. Its totient is φ = 471440986.

The previous prime is 471440947. The next prime is 471441017. The reversal of 471440987 is 789044174.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 471440987 - 2⁸ = 471440731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (471440947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235720493 + 235720494.

It is an arithmetic number, because the mean of its divisors is an integer number (235720494).

Almost surely, 2^471440987 is an apocalyptic number.

471440987 is a deficient number, since it is larger than the sum of its proper divisors (1).

471440987 is an equidigital number, since it uses as much as digits as its factorization.

471440987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 471440987 is about 21712.6918414093. The cubic root of 471440987 is about 778.2917838367.

The spelling of 471440987 in words is "four hundred seventy-one million, four hundred forty thousand, nine hundred eighty-seven".