68450743 has 4 divisors (see below), whose sum is σ = 68493568. Its totient is φ = 68407920.

The previous prime is 68450741. The next prime is 68450779. The reversal of 68450743 is 34705486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34705486 = 2 ⋅17352743.

It is a cyclic number.

It is not a de Polignac number, because 68450743 - 2¹ = 68450741 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 (68450741) 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, 18918 + ... + 22243.

It is an arithmetic number, because the mean of its divisors is an integer number (17123392).

Almost surely, 2^68450743 is an apocalyptic number.

68450743 is a deficient number, since it is larger than the sum of its proper divisors (42825).

68450743 is a wasteful number, since it uses less digits than its factorization.

68450743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42824.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 68450743 is about 8273.4964192897. The cubic root of 68450743 is about 409.0653765329.

The spelling of 68450743 in words is "sixty-eight million, four hundred fifty thousand, seven hundred forty-three".