71897252 has 12 divisors (see below), whose sum is σ = 143794560. Its totient is φ = 30813096.

The previous prime is 71897249. The next prime is 71897261. The reversal of 71897252 is 25279817.

71897252 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283852 + ... + 1283907.

It is an arithmetic number, because the mean of its divisors is an integer number (11982880).

Almost surely, 2^71897252 is an apocalyptic number.

It is an amenable number.

71897252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71897252 is a wasteful number, since it uses less digits than its factorization.

71897252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567770 (or 2567768 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 71897252 is about 8479.2247287119. The cubic root of 71897252 is about 415.8187773892.

It can be divided in two parts, 7189 and 7252, that added together give a palindrome (14441).

The spelling of 71897252 in words is "seventy-one million, eight hundred ninety-seven thousand, two hundred fifty-two".