71162472 has 32 divisors (see below), whose sum is σ = 178354080. Its totient is φ = 23661120.

The previous prime is 71162471. The next prime is 71162477. The reversal of 71162472 is 27426117.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (71162471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6583 + ... + 13625.

It is an arithmetic number, because the mean of its divisors is an integer number (5573565).

Almost surely, 2^71162472 is an apocalyptic number.

It is an amenable number.

71162472 is an abundant number, since it is smaller than the sum of its proper divisors (107191608).

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

71162472 is a wasteful number, since it uses less digits than its factorization.

71162472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7473 (or 7469 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 71162472 is about 8435.7852035243. The cubic root of 71162472 is about 414.3973873461.

Adding to 71162472 its reverse (27426117), we get a palindrome (98588589).

The spelling of 71162472 in words is "seventy-one million, one hundred sixty-two thousand, four hundred seventy-two".