287863125 has 80 divisors (see below), whose sum is σ = 554672448. Its totient is φ = 131200000.

The previous prime is 287863099. The next prime is 287863127. The reversal of 287863125 is 521368782.

It is not a de Polignac number, because 287863125 - 2¹⁰ = 287862101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287863127) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 350215 + ... + 351035.

Almost surely, 2^287863125 is an apocalyptic number.

287863125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287863125 is a deficient number, since it is larger than the sum of its proper divisors (266809323).

287863125 is a wasteful number, since it uses less digits than its factorization.

287863125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 857 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 287863125 is about 16966.5295508539. The cubic root of 287863125 is about 660.2808148462.

The spelling of 287863125 in words is "two hundred eighty-seven million, eight hundred sixty-three thousand, one hundred twenty-five".