68413361 has 4 divisors (see below), whose sum is σ = 68445300. Its totient is φ = 68381424.

The previous prime is 68413307. The next prime is 68413363. The reversal of 68413361 is 16331486.

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 59598400 + 8814961 = 7720^2 + 2969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68413361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68413363) 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, 12506 + ... + 17123.

It is an arithmetic number, because the mean of its divisors is an integer number (17111325).

Almost surely, 2^68413361 is an apocalyptic number.

It is an amenable number.

68413361 is a deficient number, since it is larger than the sum of its proper divisors (31939).

68413361 is a wasteful number, since it uses less digits than its factorization.

68413361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31938.

The product of its digits is 10368, while the sum is 32.

The square root of 68413361 is about 8271.2369691601. The cubic root of 68413361 is about 408.9908973490.

The spelling of 68413361 in words is "sixty-eight million, four hundred thirteen thousand, three hundred sixty-one".