68517936 has 60 divisors (see below), whose sum is σ = 197953600. Its totient is φ = 22101120.

The previous prime is 68517931. The next prime is 68517941. The reversal of 68517936 is 63971586.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68517931) and next prime (68517941).

It is a junction number, because it is equal to n+sod(n) for n = 68517891 and 68517900.

It is not an unprimeable number, because it can be changed into a prime (68517931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3211 + ... + 12138.

Almost surely, 2^68517936 is an apocalyptic number.

It is an amenable number.

68517936 is an abundant number, since it is smaller than the sum of its proper divisors (129435664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68517936 is a wasteful number, since it uses less digits than its factorization.

68517936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15394 (or 15385 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 68517936 is about 8277.5561610901. The cubic root of 68517936 is about 409.1991824386.

The spelling of 68517936 in words is "sixty-eight million, five hundred seventeen thousand, nine hundred thirty-six".