71234712 has 96 divisors (see below), whose sum is σ = 201474000. Its totient is φ = 22717440.

The previous prime is 71234699. The next prime is 71234717. The reversal of 71234712 is 21743217.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71234717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173964 + ... + 174372.

Almost surely, 2^71234712 is an apocalyptic number.

71234712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71234712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100737000).

71234712 is an abundant number, since it is smaller than the sum of its proper divisors (130239288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71234712 is a wasteful number, since it uses less digits than its factorization.

71234712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 514 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 71234712 is about 8440.0658765202. The cubic root of 71234712 is about 414.5375639604.

Adding to 71234712 its reverse (21743217), we get a palindrome (92977929).

The spelling of 71234712 in words is "seventy-one million, two hundred thirty-four thousand, seven hundred twelve".