68204231 has 4 divisors (see below), whose sum is σ = 68866512. Its totient is φ = 67541952.

The previous prime is 68204183. The next prime is 68204249. The reversal of 68204231 is 13240286.

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

It is a cyclic number.

It is not a de Polignac number, because 68204231 - 2¹⁰ = 68203207 is a prime.

It is a super-2 number, since 2×68204231² = 9303634252602722, which contains 22 as substring.

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 68204231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68204251) 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, 330986 + ... + 331191.

It is an arithmetic number, because the mean of its divisors is an integer number (17216628).

Almost surely, 2^68204231 is an apocalyptic number.

68204231 is a deficient number, since it is larger than the sum of its proper divisors (662281).

68204231 is a wasteful number, since it uses less digits than its factorization.

68204231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662280.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 68204231 is about 8258.5852904720. The cubic root of 68204231 is about 408.5737294802.

The spelling of 68204231 in words is "sixty-eight million, two hundred four thousand, two hundred thirty-one".