287997000471 has 8 divisors (see below), whose sum is σ = 426662222960. Its totient is φ = 191998000296.

The previous prime is 287997000439. The next prime is 287997000517. The reversal of 287997000471 is 174000799782.

287997000471 is a `hidden beast` number, since 2 + 87 + 9 + 97 + 0 + 0 + 0 + 471 = 666.

It is not a de Polignac number, because 287997000471 - 2⁵ = 287997000439 is a prime.

It is a super-3 number, since 3×287997000471³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287997000371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5333277760 + ... + 5333277813.

It is an arithmetic number, because the mean of its divisors is an integer number (53332777870).

Almost surely, 2^287997000471 is an apocalyptic number.

287997000471 is a deficient number, since it is larger than the sum of its proper divisors (138665222489).

287997000471 is a wasteful number, since it uses less digits than its factorization.

287997000471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666555582 (or 10666555576 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 287997000471 in words is "two hundred eighty-seven billion, nine hundred ninety-seven million, four hundred seventy-one", and thus it is an aban number.