68563407 has 16 divisors (see below), whose sum is σ = 99868032. Its totient is φ = 41495520.

The previous prime is 68563403. The next prime is 68563409. The reversal of 68563407 is 70436586.

It is not a de Polignac number, because 68563407 - 2² = 68563403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68563403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41328 + ... + 42954.

It is an arithmetic number, because the mean of its divisors is an integer number (6241752).

Almost surely, 2^68563407 is an apocalyptic number.

68563407 is a deficient number, since it is larger than the sum of its proper divisors (31304625).

68563407 is a wasteful number, since it uses less digits than its factorization.

68563407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 68563407 is about 8280.3023495522. The cubic root of 68563407 is about 409.2896822532.

The spelling of 68563407 in words is "sixty-eight million, five hundred sixty-three thousand, four hundred seven".