287228463 has 8 divisors (see below), whose sum is σ = 383061888. Its totient is φ = 191440344.

The previous prime is 287228449. The next prime is 287228471. The reversal of 287228463 is 364822782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 287228463 - 2⁶ = 287228399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287226463) 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, 8356 + ... + 25382.

It is an arithmetic number, because the mean of its divisors is an integer number (47882736).

Almost surely, 2^287228463 is an apocalyptic number.

287228463 is a deficient number, since it is larger than the sum of its proper divisors (95833425).

287228463 is a wasteful number, since it uses less digits than its factorization.

287228463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22653.

The product of its digits is 258048, while the sum is 42.

The square root of 287228463 is about 16947.8158769795. The cubic root of 287228463 is about 659.7952096489.

The spelling of 287228463 in words is "two hundred eighty-seven million, two hundred twenty-eight thousand, four hundred sixty-three".