68961335 has 4 divisors (see below), whose sum is σ = 82753608. Its totient is φ = 55169064.

The previous prime is 68961323. The next prime is 68961349. The reversal of 68961335 is 53316986.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53316986 = 2 ⋅26658493.

It is a cyclic number.

It is not a de Polignac number, because 68961335 - 2⁶ = 68961271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68961292 and 68961301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6896129 + ... + 6896138.

It is an arithmetic number, because the mean of its divisors is an integer number (20688402).

Almost surely, 2^68961335 is an apocalyptic number.

68961335 is a deficient number, since it is larger than the sum of its proper divisors (13792273).

68961335 is a wasteful number, since it uses less digits than its factorization.

68961335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13792272.

The product of its digits is 116640, while the sum is 41.

The square root of 68961335 is about 8304.2961772808. The cubic root of 68961335 is about 410.0799665558.

It can be divided in two parts, 68961 and 335, that added together give a palindrome (69296).

The spelling of 68961335 in words is "sixty-eight million, nine hundred sixty-one thousand, three hundred thirty-five".