68472231 has 4 divisors (see below), whose sum is σ = 91296312. Its totient is φ = 45648152.

The previous prime is 68472227. The next prime is 68472233. The reversal of 68472231 is 13227486.

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 68472231 - 2² = 68472227 is a prime.

It is a super-2 number, since 2×68472231² = 9376892836234722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68472192 and 68472201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68472233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11412036 + ... + 11412041.

It is an arithmetic number, because the mean of its divisors is an integer number (22824078).

Almost surely, 2^68472231 is an apocalyptic number.

68472231 is a deficient number, since it is larger than the sum of its proper divisors (22824081).

68472231 is a wasteful number, since it uses less digits than its factorization.

68472231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22824080.

The product of its digits is 16128, while the sum is 33.

The square root of 68472231 is about 8274.7949219301. The cubic root of 68472231 is about 409.1081765416.

The spelling of 68472231 in words is "sixty-eight million, four hundred seventy-two thousand, two hundred thirty-one".