68538265 has 8 divisors (see below), whose sum is σ = 84252168. Its totient is φ = 53493120.

The previous prime is 68538257. The next prime is 68538287. The reversal of 68538265 is 56283586.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 327184 + 68211081 = 572^2 + 8259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68538265 - 2³ = 68538257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166962 + ... + 167371.

It is an arithmetic number, because the mean of its divisors is an integer number (10531521).

Almost surely, 2^68538265 is an apocalyptic number.

It is an amenable number.

68538265 is a deficient number, since it is larger than the sum of its proper divisors (15713903).

68538265 is a wasteful number, since it uses less digits than its factorization.

68538265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334379.

The product of its digits is 345600, while the sum is 43.

The square root of 68538265 is about 8278.7840290709. The cubic root of 68538265 is about 409.2396476954.

The spelling of 68538265 in words is "sixty-eight million, five hundred thirty-eight thousand, two hundred sixty-five".