68362447 has 4 divisors (see below), whose sum is σ = 68390560. Its totient is φ = 68334336.

The previous prime is 68362403. The next prime is 68362493. The reversal of 68362447 is 74426386.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68362447 - 2⁷ = 68362319 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 (68363447) 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 3 ways as a sum of consecutive naturals, for example, 10023 + ... + 15400.

It is an arithmetic number, because the mean of its divisors is an integer number (17097640).

Almost surely, 2^68362447 is an apocalyptic number.

68362447 is a deficient number, since it is larger than the sum of its proper divisors (28113).

68362447 is a wasteful number, since it uses less digits than its factorization.

68362447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28112.

The product of its digits is 193536, while the sum is 40.

The square root of 68362447 is about 8268.1586220875. The cubic root of 68362447 is about 408.8894136133.

The spelling of 68362447 in words is "sixty-eight million, three hundred sixty-two thousand, four hundred forty-seven".