68284231 has 4 divisors (see below), whose sum is σ = 68310000. Its totient is φ = 68258464.

The previous prime is 68284211. The next prime is 68284247. The reversal of 68284231 is 13248286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13248286 = 2 ⋅6624143.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68284231 is a prime.

It is a super-2 number, since 2×68284231² = 9325472406522722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68284201) 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, 8386 + ... + 14383.

It is an arithmetic number, because the mean of its divisors is an integer number (17077500).

Almost surely, 2^68284231 is an apocalyptic number.

68284231 is a deficient number, since it is larger than the sum of its proper divisors (25769).

68284231 is a wasteful number, since it uses less digits than its factorization.

68284231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25768.

The product of its digits is 18432, while the sum is 34.

The square root of 68284231 is about 8263.4273155876. The cubic root of 68284231 is about 408.7334122769.

The spelling of 68284231 in words is "sixty-eight million, two hundred eighty-four thousand, two hundred thirty-one".