71448969 has 8 divisors (see below), whose sum is σ = 96570592. Its totient is φ = 46980000.

The previous prime is 71448967. The next prime is 71448997. The reversal of 71448969 is 96984417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71448969 - 2¹ = 71448967 is a prime.

It is a super-2 number, since 2×71448969² = 10209910342325922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71448967) 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, 162907 + ... + 163344.

It is an arithmetic number, because the mean of its divisors is an integer number (12071324).

Almost surely, 2^71448969 is an apocalyptic number.

It is an amenable number.

71448969 is a deficient number, since it is larger than the sum of its proper divisors (25121623).

71448969 is a wasteful number, since it uses less digits than its factorization.

71448969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326327.

The product of its digits is 435456, while the sum is 48.

The square root of 71448969 is about 8452.7491977463. The cubic root of 71448969 is about 414.9527579649.

The spelling of 71448969 in words is "seventy-one million, four hundred forty-eight thousand, nine hundred sixty-nine".