68373733 has 4 divisors (see below), whose sum is σ = 71346528. Its totient is φ = 65400940.

The previous prime is 68373719. The next prime is 68373737. The reversal of 68373733 is 33737386.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33737386 = 2 ⋅16868693.

It is a cyclic number.

It is not a de Polignac number, because 68373733 - 2¹³ = 68365541 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68373737) 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, 1486363 + ... + 1486408.

It is an arithmetic number, because the mean of its divisors is an integer number (17836632).

Almost surely, 2^68373733 is an apocalyptic number.

It is an amenable number.

68373733 is a deficient number, since it is larger than the sum of its proper divisors (2972795).

68373733 is a wasteful number, since it uses less digits than its factorization.

68373733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2972794.

The product of its digits is 190512, while the sum is 40.

The square root of 68373733 is about 8268.8410917129. The cubic root of 68373733 is about 408.9119136466.

The spelling of 68373733 in words is "sixty-eight million, three hundred seventy-three thousand, seven hundred thirty-three".