68087563 has 16 divisors (see below), whose sum is σ = 74131200. Its totient is φ = 62375040.

The previous prime is 68087557. The next prime is 68087597. The reversal of 68087563 is 36578086.

It is a cyclic number.

It is not a de Polignac number, because 68087563 - 2¹⁷ = 67956491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68087543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46933 + ... + 48361.

It is an arithmetic number, because the mean of its divisors is an integer number (4633200).

Almost surely, 2^68087563 is an apocalyptic number.

68087563 is a deficient number, since it is larger than the sum of its proper divisors (6043637).

68087563 is a wasteful number, since it uses less digits than its factorization.

68087563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 68087563 is about 8251.5188298882. The cubic root of 68087563 is about 408.3406320876.

The spelling of 68087563 in words is "sixty-eight million, eighty-seven thousand, five hundred sixty-three".