68793657 has 8 divisors (see below), whose sum is σ = 93094176. Its totient is φ = 45177792.

The previous prime is 68793653. The next prime is 68793677. The reversal of 68793657 is 75639786.

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

It is not a de Polignac number, because 68793657 - 2² = 68793653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68793653) 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, 170928 + ... + 171329.

It is an arithmetic number, because the mean of its divisors is an integer number (11636772).

Almost surely, 2^68793657 is an apocalyptic number.

68793657 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

68793657 is a deficient number, since it is larger than the sum of its proper divisors (24300519).

68793657 is a wasteful number, since it uses less digits than its factorization.

68793657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342327.

The product of its digits is 1905120, while the sum is 51.

The square root of 68793657 is about 8294.1941742402. The cubic root of 68793657 is about 409.7473299430.

The spelling of 68793657 in words is "sixty-eight million, seven hundred ninety-three thousand, six hundred fifty-seven".