71053972 has 12 divisors (see below), whose sum is σ = 135648576. Its totient is φ = 32297240.

The previous prime is 71053967. The next prime is 71053987. The reversal of 71053972 is 27935017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807388 + ... + 807475.

It is an arithmetic number, because the mean of its divisors is an integer number (11304048).

Almost surely, 2^71053972 is an apocalyptic number.

It is an amenable number.

71053972 is a deficient number, since it is larger than the sum of its proper divisors (64594604).

71053972 is a wasteful number, since it uses less digits than its factorization.

71053972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614878 (or 1614876 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 71053972 is about 8429.3518137518. The cubic root of 71053972 is about 414.1866724117.

Adding to 71053972 its reverse (27935017), we get a palindrome (98988989).

The spelling of 71053972 in words is "seventy-one million, fifty-three thousand, nine hundred seventy-two".