68938543 has 8 divisors (see below), whose sum is σ = 69589520. Its totient is φ = 68290560.

The previous prime is 68938501. The next prime is 68938547. The reversal of 68938543 is 34583986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68938543 - 2²¹ = 66841391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68938493 and 68938502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68938547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89263 + ... + 90031.

It is an arithmetic number, because the mean of its divisors is an integer number (8698690).

Almost surely, 2^68938543 is an apocalyptic number.

68938543 is a deficient number, since it is larger than the sum of its proper divisors (650977).

68938543 is a wasteful number, since it uses less digits than its factorization.

68938543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497.

The product of its digits is 622080, while the sum is 46.

The square root of 68938543 is about 8302.9237621455. The cubic root of 68938543 is about 410.0347838821.

The spelling of 68938543 in words is "sixty-eight million, nine hundred thirty-eight thousand, five hundred forty-three".