71667243 has 12 divisors (see below), whose sum is σ = 104336128. Its totient is φ = 47401200.

The previous prime is 71667217. The next prime is 71667293. The reversal of 71667243 is 34276617.

It is not a de Polignac number, because 71667243 - 2¹⁶ = 71601707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71667198 and 71667207.

It is not an unprimeable number, because it can be changed into a prime (71667293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30208 + ... + 32493.

Almost surely, 2^71667243 is an apocalyptic number.

71667243 is a deficient number, since it is larger than the sum of its proper divisors (32668885).

71667243 is a wasteful number, since it uses less digits than its factorization.

71667243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62834 (or 62831 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 71667243 is about 8465.6507723860. The cubic root of 71667243 is about 415.3748835881.

The spelling of 71667243 in words is "seventy-one million, six hundred sixty-seven thousand, two hundred forty-three".