68863544 has 8 divisors (see below), whose sum is σ = 129119160. Its totient is φ = 34431768.

The previous prime is 68863537. The next prime is 68863547. The reversal of 68863544 is 44536886.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 68863495 and 68863504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68863547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4303964 + ... + 4303979.

It is an arithmetic number, because the mean of its divisors is an integer number (16139895).

Almost surely, 2^68863544 is an apocalyptic number.

It is an amenable number.

68863544 is a deficient number, since it is larger than the sum of its proper divisors (60255616).

68863544 is a wasteful number, since it uses less digits than its factorization.

68863544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607949 (or 8607945 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The square root of 68863544 is about 8298.4061120193. The cubic root of 68863544 is about 409.8860361422.

The spelling of 68863544 in words is "sixty-eight million, eight hundred sixty-three thousand, five hundred forty-four".