68407793 has 8 divisors (see below), whose sum is σ = 70803456. Its totient is φ = 66024000.

The previous prime is 68407777. The next prime is 68407811. The reversal of 68407793 is 39770486.

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 68407793 - 2⁴ = 68407777 is a prime.

It is a super-2 number, since 2×68407793² = 9359252286261698, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68407753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9680 + ... + 15182.

It is an arithmetic number, because the mean of its divisors is an integer number (8850432).

Almost surely, 2^68407793 is an apocalyptic number.

It is an amenable number.

68407793 is a deficient number, since it is larger than the sum of its proper divisors (2395663).

68407793 is a wasteful number, since it uses less digits than its factorization.

68407793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5935.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 68407793 is about 8270.9003742035. The cubic root of 68407793 is about 408.9798014507.

The spelling of 68407793 in words is "sixty-eight million, four hundred seven thousand, seven hundred ninety-three".