68364447 has 4 divisors (see below), whose sum is σ = 91152600. Its totient is φ = 45576296.

The previous prime is 68364437. The next prime is 68364449. The reversal of 68364447 is 74446386.

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 68364447 - 2⁶ = 68364383 is a prime.

It is a super-2 number, since 2×68364447² = 9347395227231618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68364399 and 68364408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68364449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11394072 + ... + 11394077.

It is an arithmetic number, because the mean of its divisors is an integer number (22788150).

Almost surely, 2^68364447 is an apocalyptic number.

68364447 is a deficient number, since it is larger than the sum of its proper divisors (22788153).

68364447 is a wasteful number, since it uses less digits than its factorization.

68364447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22788152.

The product of its digits is 387072, while the sum is 42.

The square root of 68364447 is about 8268.2795671167. The cubic root of 68364447 is about 408.8934010406.

The spelling of 68364447 in words is "sixty-eight million, three hundred sixty-four thousand, four hundred forty-seven".