863450487 has 12 divisors (see below), whose sum is σ = 1262994720. Its totient is φ = 568346688.

The previous prime is 863450473. The next prime is 863450501. The reversal of 863450487 is 784054368.

863450487 is a `hidden beast` number, since 8 + 63 + 4 + 504 + 87 = 666.

It is an interprime number because it is at equal distance from previous prime (863450473) and next prime (863450501).

It is not a de Polignac number, because 863450487 - 2⁷ = 863450359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863450407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606498 + ... + 607919.

It is an arithmetic number, because the mean of its divisors is an integer number (105249560).

Almost surely, 2^863450487 is an apocalyptic number.

863450487 is a deficient number, since it is larger than the sum of its proper divisors (399544233).

863450487 is a wasteful number, since it uses less digits than its factorization.

863450487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214502 (or 1214499 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 863450487 is about 29384.5280207119. The cubic root of 863450487 is about 952.2386676370.

The spelling of 863450487 in words is "eight hundred sixty-three million, four hundred fifty thousand, four hundred eighty-seven".