68405793 has 8 divisors (see below), whose sum is σ = 92015328. Its totient is φ = 45200064.

The previous prime is 68405791. The next prime is 68405801. The reversal of 68405793 is 39750486.

It is a happy number.

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

It is not a de Polignac number, because 68405793 - 2¹ = 68405791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68405791) 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, 100555 + ... + 101232.

It is an arithmetic number, because the mean of its divisors is an integer number (11501916).

Almost surely, 2^68405793 is an apocalyptic number.

It is an amenable number.

68405793 is a deficient number, since it is larger than the sum of its proper divisors (23609535).

68405793 is a wasteful number, since it uses less digits than its factorization.

68405793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201903.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 68405793 is about 8270.7794674988. The cubic root of 68405793 is about 408.9758157080.

The spelling of 68405793 in words is "sixty-eight million, four hundred five thousand, seven hundred ninety-three".