71244965 has 32 divisors (see below), whose sum is σ = 99532800. Its totient is φ = 48409920.

The previous prime is 71244947. The next prime is 71244973. The reversal of 71244965 is 56944217.

It is not a de Polignac number, because 71244965 - 2¹⁰ = 71243941 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82124 + ... + 82986.

It is an arithmetic number, because the mean of its divisors is an integer number (3110400).

Almost surely, 2^71244965 is an apocalyptic number.

It is an amenable number.

71244965 is a deficient number, since it is larger than the sum of its proper divisors (28287835).

71244965 is a wasteful number, since it uses less digits than its factorization.

71244965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977.

The product of its digits is 60480, while the sum is 38.

The square root of 71244965 is about 8440.6732551379. The cubic root of 71244965 is about 414.5574515013.

The spelling of 71244965 in words is "seventy-one million, two hundred forty-four thousand, nine hundred sixty-five".