68448447 has 6 divisors (see below), whose sum is σ = 98869992. Its totient is φ = 45632292.

The previous prime is 68448433. The next prime is 68448449. The reversal of 68448447 is 74484486.

It is not a de Polignac number, because 68448447 - 2⁶ = 68448383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68448449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3802683 + ... + 3802700.

It is an arithmetic number, because the mean of its divisors is an integer number (16478332).

Almost surely, 2^68448447 is an apocalyptic number.

68448447 is a deficient number, since it is larger than the sum of its proper divisors (30421545).

68448447 is a wasteful number, since it uses less digits than its factorization.

68448447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7605389 (or 7605386 counting only the distinct ones).

The product of its digits is 688128, while the sum is 45.

The square root of 68448447 is about 8273.3576617961. The cubic root of 68448447 is about 409.0608028080.

The spelling of 68448447 in words is "sixty-eight million, four hundred forty-eight thousand, four hundred forty-seven".