71447343 has 32 divisors (see below), whose sum is σ = 108109824. Its totient is φ = 41580000.

The previous prime is 71447323. The next prime is 71447347. The reversal of 71447343 is 34374417.

It is not a de Polignac number, because 71447343 - 2¹² = 71443247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71447347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215688 + ... + 216018.

It is an arithmetic number, because the mean of its divisors is an integer number (3378432).

Almost surely, 2^71447343 is an apocalyptic number.

71447343 is a deficient number, since it is larger than the sum of its proper divisors (36662481).

71447343 is a wasteful number, since it uses less digits than its factorization.

71447343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587.

The product of its digits is 28224, while the sum is 33.

The square root of 71447343 is about 8452.6530154739. The cubic root of 71447343 is about 414.9496101784.

The spelling of 71447343 in words is "seventy-one million, four hundred forty-seven thousand, three hundred forty-three".