68732743 has 4 divisors (see below), whose sum is σ = 68811120. Its totient is φ = 68654368.

The previous prime is 68732737. The next prime is 68732749. The reversal of 68732743 is 34723786.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34723786 = 2 ⋅17361893.

It is an interprime number because it is at equal distance from previous prime (68732737) and next prime (68732749).

It is a cyclic number.

It is not a de Polignac number, because 68732743 - 2⁹ = 68732231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68732696 and 68732705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68732749) 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, 37858 + ... + 39631.

It is an arithmetic number, because the mean of its divisors is an integer number (17202780).

Almost surely, 2^68732743 is an apocalyptic number.

68732743 is a deficient number, since it is larger than the sum of its proper divisors (78377).

68732743 is an equidigital number, since it uses as much as digits as its factorization.

68732743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78376.

The product of its digits is 169344, while the sum is 40.

The square root of 68732743 is about 8290.5212743229. The cubic root of 68732743 is about 409.6263560025.

The spelling of 68732743 in words is "sixty-eight million, seven hundred thirty-two thousand, seven hundred forty-three".