616256487 has 36 divisors (see below), whose sum is σ = 1129621896. Its totient is φ = 320130720.

The previous prime is 616256479. The next prime is 616256573. The reversal of 616256487 is 784652616.

616256487 is a `hidden beast` number, since 6 + 1 + 6 + 2 + 564 + 87 = 666.

It is not a de Polignac number, because 616256487 - 2³ = 616256479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616256447) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 58668 + ... + 68369.

It is an arithmetic number, because the mean of its divisors is an integer number (31378386).

Almost surely, 2^616256487 is an apocalyptic number.

616256487 is a deficient number, since it is larger than the sum of its proper divisors (513365409).

616256487 is a wasteful number, since it uses less digits than its factorization.

616256487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127068 (or 127058 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 616256487 is about 24824.5138320975. The cubic root of 616256487 is about 850.9822494932.

The spelling of 616256487 in words is "six hundred sixteen million, two hundred fifty-six thousand, four hundred eighty-seven".