71107472 has 10 divisors (see below), whose sum is σ = 137770758. Its totient is φ = 35553728.

The previous prime is 71107469. The next prime is 71107483. The reversal of 71107472 is 27470117.

It can be written as a sum of positive squares in only one way, i.e., 70492816 + 614656 = 8396^2 + 784^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222093 + ... + 2222124.

Almost surely, 2^71107472 is an apocalyptic number.

It is an amenable number.

71107472 is a deficient number, since it is larger than the sum of its proper divisors (66663286).

71107472 is a wasteful number, since it uses less digits than its factorization.

71107472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444225 (or 4444219 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 71107472 is about 8432.5246516094. The cubic root of 71107472 is about 414.2906001122.

Adding to 71107472 its reverse (27470117), we get a palindrome (98577589).

The spelling of 71107472 in words is "seventy-one million, one hundred seven thousand, four hundred seventy-two".