71023272 has 32 divisors (see below), whose sum is σ = 181690080. Its totient is φ = 23123520.

The previous prime is 71023237. The next prime is 71023307. The reversal of 71023272 is 27232017.

It is an interprime number because it is at equal distance from previous prime (71023237) and next prime (71023307).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33379 + ... + 35442.

It is an arithmetic number, because the mean of its divisors is an integer number (5677815).

Almost surely, 2^71023272 is an apocalyptic number.

It is an amenable number.

71023272 is an abundant number, since it is smaller than the sum of its proper divisors (110666808).

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

71023272 is a wasteful number, since it uses less digits than its factorization.

71023272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68873 (or 68869 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 71023272 is about 8427.5305991732. The cubic root of 71023272 is about 414.1270118361.

Adding to 71023272 its reverse (27232017), we get a palindrome (98255289).

The spelling of 71023272 in words is "seventy-one million, twenty-three thousand, two hundred seventy-two".