68711724 has 18 divisors (see below), whose sum is σ = 173688060. Its totient is φ = 22903896.

The previous prime is 68711719. The next prime is 68711737. The reversal of 68711724 is 42711786.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1908659 = 68711724 / (6 + 8 + 7 + 1 + 1 + 7 + 2 + 4).

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 954294 + ... + 954365.

Almost surely, 2^68711724 is an apocalyptic number.

It is an amenable number.

68711724 is an abundant number, since it is smaller than the sum of its proper divisors (104976336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68711724 is a wasteful number, since it uses less digits than its factorization.

68711724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908669 (or 1908664 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 68711724 is about 8289.2535248960. The cubic root of 68711724 is about 409.5845961182.

The spelling of 68711724 in words is "sixty-eight million, seven hundred eleven thousand, seven hundred twenty-four".