71487372 has 24 divisors (see below), whose sum is σ = 181968192. Its totient is φ = 21662800.

The previous prime is 71487347. The next prime is 71487373. The reversal of 71487372 is 27378417.

It is a super-2 number, since 2×71487372² = 10220888710932768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71487372.

It is not an unprimeable number, because it can be changed into a prime (71487373) 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, 270654 + ... + 270917.

It is an arithmetic number, because the mean of its divisors is an integer number (7582008).

Almost surely, 2^71487372 is an apocalyptic number.

It is an amenable number.

71487372 is an abundant number, since it is smaller than the sum of its proper divisors (110480820).

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

71487372 is a wasteful number, since it uses less digits than its factorization.

71487372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541589 (or 541587 counting only the distinct ones).

The product of its digits is 65856, while the sum is 39.

The square root of 71487372 is about 8455.0205203772. The cubic root of 71487372 is about 415.0270887626.

The spelling of 71487372 in words is "seventy-one million, four hundred eighty-seven thousand, three hundred seventy-two".