68706447 has 32 divisors (see below), whose sum is σ = 99692544. Its totient is φ = 41990400.

The previous prime is 68706427. The next prime is 68706461. The reversal of 68706447 is 74460786.

It is not a de Polignac number, because 68706447 - 2¹⁶ = 68640911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68706399 and 68706408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68706427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140838 + ... + 141324.

It is an arithmetic number, because the mean of its divisors is an integer number (3115392).

Almost surely, 2^68706447 is an apocalyptic number.

68706447 is a deficient number, since it is larger than the sum of its proper divisors (30986097).

68706447 is a wasteful number, since it uses less digits than its factorization.

68706447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 68706447 is about 8288.9352150925. The cubic root of 68706447 is about 409.5741106041.

The spelling of 68706447 in words is "sixty-eight million, seven hundred six thousand, four hundred forty-seven".