71447469 has 8 divisors (see below), whose sum is σ = 95327232. Its totient is φ = 47599680.

The previous prime is 71447417. The next prime is 71447477. The reversal of 71447469 is 96474417.

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

It is not a de Polignac number, because 71447469 - 2¹⁷ = 71316397 is a prime.

It is a super-2 number, since 2×71447469² = 10209481653011922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71447469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71447069) 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, 2172 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (11915904).

Almost surely, 2^71447469 is an apocalyptic number.

It is an amenable number.

71447469 is a deficient number, since it is larger than the sum of its proper divisors (23879763).

71447469 is a wasteful number, since it uses less digits than its factorization.

71447469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15987.

The product of its digits is 169344, while the sum is 42.

The square root of 71447469 is about 8452.6604687518. The cubic root of 71447469 is about 414.9498541045.

The spelling of 71447469 in words is "seventy-one million, four hundred forty-seven thousand, four hundred sixty-nine".