68741447 has 4 divisors (see below), whose sum is σ = 69121416. Its totient is φ = 68361480.

The previous prime is 68741443. The next prime is 68741467. The reversal of 68741447 is 74414786.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74414786 = 2 ⋅37207393.

It is a cyclic number.

It is not a de Polignac number, because 68741447 - 2² = 68741443 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 (68741443) 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, 189713 + ... + 190074.

It is an arithmetic number, because the mean of its divisors is an integer number (17280354).

Almost surely, 2^68741447 is an apocalyptic number.

68741447 is a deficient number, since it is larger than the sum of its proper divisors (379969).

68741447 is a wasteful number, since it uses less digits than its factorization.

68741447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379968.

The product of its digits is 150528, while the sum is 41.

The square root of 68741447 is about 8291.0461945402. The cubic root of 68741447 is about 409.6436463417.

The spelling of 68741447 in words is "sixty-eight million, seven hundred forty-one thousand, four hundred forty-seven".