68711477 has 8 divisors (see below), whose sum is σ = 69400800. Its totient is φ = 68025904.

The previous prime is 68711473. The next prime is 68711491. The reversal of 68711477 is 77411786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68711477 - 2² = 68711473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68711473) 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 in 7 ways as a sum of consecutive naturals, for example, 47438 + ... + 48864.

It is an arithmetic number, because the mean of its divisors is an integer number (8675100).

Almost surely, 2^68711477 is an apocalyptic number.

It is an amenable number.

68711477 is a deficient number, since it is larger than the sum of its proper divisors (689323).

68711477 is a wasteful number, since it uses less digits than its factorization.

68711477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875.

The product of its digits is 65856, while the sum is 41.

The square root of 68711477 is about 8289.2386260742. The cubic root of 68711477 is about 409.5841053358.

The spelling of 68711477 in words is "sixty-eight million, seven hundred eleven thousand, four hundred seventy-seven".