68536441 has 4 divisors (see below), whose sum is σ = 68556132. Its totient is φ = 68516752.

The previous prime is 68536411. The next prime is 68536463. The reversal of 68536441 is 14463586.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14463586 = 2 ⋅7231793.

It can be written as a sum of positive squares in 2 ways, for example, as 26998416 + 41538025 = 5196^2 + 6445^2 .

It is a cyclic number.

It is not a de Polignac number, because 68536441 - 2²³ = 60147833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68536441.

It is not an unprimeable number, because it can be changed into a prime (68536411) 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, 3070 + ... + 12103.

It is an arithmetic number, because the mean of its divisors is an integer number (17139033).

Almost surely, 2^68536441 is an apocalyptic number.

It is an amenable number.

68536441 is a deficient number, since it is larger than the sum of its proper divisors (19691).

68536441 is a wasteful number, since it uses less digits than its factorization.

68536441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19690.

The product of its digits is 69120, while the sum is 37.

The square root of 68536441 is about 8278.6738672326. The cubic root of 68536441 is about 409.2360173158.

The spelling of 68536441 in words is "sixty-eight million, five hundred thirty-six thousand, four hundred forty-one".