71253672 has 32 divisors (see below), whose sum is σ = 203582400. Its totient is φ = 20358144.

The previous prime is 71253659. The next prime is 71253697. The reversal of 71253672 is 27635217.

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, 211897 + ... + 212232.

It is an arithmetic number, because the mean of its divisors is an integer number (6361950).

Almost surely, 2^71253672 is an apocalyptic number.

It is an amenable number.

71253672 is an abundant number, since it is smaller than the sum of its proper divisors (132328728).

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

71253672 is a wasteful number, since it uses less digits than its factorization.

71253672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424145 (or 424141 counting only the distinct ones).

The product of its digits is 17640, while the sum is 33.

The square root of 71253672 is about 8441.1890157726. The cubic root of 71253672 is about 414.5743387985.

Adding to 71253672 its reverse (27635217), we get a palindrome (98888889).

The spelling of 71253672 in words is "seventy-one million, two hundred fifty-three thousand, six hundred seventy-two".