71450443 has 12 divisors (see below), whose sum is σ = 77119168. Its totient is φ = 66124080.

The previous prime is 71450437. The next prime is 71450453. The reversal of 71450443 is 34405417.

It is a de Polignac number, because none of the positive numbers 2^k-71450443 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71450453) 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 11 ways as a sum of consecutive naturals, for example, 14221 + ... + 18577.

Almost surely, 2^71450443 is an apocalyptic number.

71450443 is a deficient number, since it is larger than the sum of its proper divisors (5668725).

71450443 is a wasteful number, since it uses less digits than its factorization.

71450443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434 (or 4411 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 71450443 is about 8452.8363878641. The cubic root of 71450443 is about 414.9556114521.

The spelling of 71450443 in words is "seventy-one million, four hundred fifty thousand, four hundred forty-three".