68938293 has 4 divisors (see below), whose sum is σ = 91917728. Its totient is φ = 45958860.

The previous prime is 68938283. The next prime is 68938313. The reversal of 68938293 is 39283986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68938293 - 2¹³ = 68930101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68938253) 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, 11489713 + ... + 11489718.

It is an arithmetic number, because the mean of its divisors is an integer number (22979432).

Almost surely, 2^68938293 is an apocalyptic number.

It is an amenable number.

68938293 is a deficient number, since it is larger than the sum of its proper divisors (22979435).

68938293 is a wasteful number, since it uses less digits than its factorization.

68938293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22979434.

The product of its digits is 559872, while the sum is 48.

The square root of 68938293 is about 8302.9087071941. The cubic root of 68938293 is about 410.0342882290.

The spelling of 68938293 in words is "sixty-eight million, nine hundred thirty-eight thousand, two hundred ninety-three".