71448463 has 4 divisors (see below), whose sum is σ = 71499960. Its totient is φ = 71396968.

The previous prime is 71448457. The next prime is 71448473. The reversal of 71448463 is 36484417.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71448463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71448473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23608 + ... + 26461.

It is an arithmetic number, because the mean of its divisors is an integer number (17874990).

Almost surely, 2^71448463 is an apocalyptic number.

71448463 is a deficient number, since it is larger than the sum of its proper divisors (51497).

71448463 is a wasteful number, since it uses less digits than its factorization.

71448463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51496.

The product of its digits is 64512, while the sum is 37.

The square root of 71448463 is about 8452.7192666029. The cubic root of 71448463 is about 414.9517784005.

The spelling of 71448463 in words is "seventy-one million, four hundred forty-eight thousand, four hundred sixty-three".