68217041 has 4 divisors (see below), whose sum is σ = 68510052. Its totient is φ = 67924032.

The previous prime is 68217029. The next prime is 68217043. The reversal of 68217041 is 14071286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36857041 + 31360000 = 6071^2 + 5600^2 .

It is a cyclic number.

It is not a de Polignac number, because 68217041 - 2⁶ = 68216977 is a prime.

It is a pancake number, because a pancake can be divided into 68217041 parts by 11680 straight cuts.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68216995 and 68217013.

It is not an unprimeable number, because it can be changed into a prime (68217043) 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, 146156 + ... + 146621.

It is an arithmetic number, because the mean of its divisors is an integer number (17127513).

Almost surely, 2^68217041 is an apocalyptic number.

It is an amenable number.

68217041 is a deficient number, since it is larger than the sum of its proper divisors (293011).

68217041 is a wasteful number, since it uses less digits than its factorization.

68217041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293010.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 68217041 is about 8259.3608106197. The cubic root of 68217041 is about 408.5993070812.

The spelling of 68217041 in words is "sixty-eight million, two hundred seventeen thousand, forty-one".