68447455 has 8 divisors (see below), whose sum is σ = 82629792. Its totient is φ = 54429408.

The previous prime is 68447387. The next prime is 68447459. The reversal of 68447455 is 55474486.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68447455 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 (68447459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40152 + ... + 41821.

It is an arithmetic number, because the mean of its divisors is an integer number (10328724).

Almost surely, 2^68447455 is an apocalyptic number.

68447455 is a deficient number, since it is larger than the sum of its proper divisors (14182337).

68447455 is a wasteful number, since it uses less digits than its factorization.

68447455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82145.

The product of its digits is 537600, while the sum is 43.

The square root of 68447455 is about 8273.2977101033. The cubic root of 68447455 is about 409.0588266722.

The spelling of 68447455 in words is "sixty-eight million, four hundred forty-seven thousand, four hundred fifty-five".