71294449 has 8 divisors (see below), whose sum is σ = 75008808. Its totient is φ = 67674240.

The previous prime is 71294401. The next prime is 71294453. The reversal of 71294449 is 94449217.

It can be written as a sum of positive squares in 4 ways, for example, as 7182400 + 64112049 = 2680^2 + 8007^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 71294449 - 2¹⁵ = 71261681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71294459) 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, 21982 + ... + 25015.

It is an arithmetic number, because the mean of its divisors is an integer number (9376101).

Almost surely, 2^71294449 is an apocalyptic number.

It is an amenable number.

71294449 is a deficient number, since it is larger than the sum of its proper divisors (3714359).

71294449 is a wasteful number, since it uses less digits than its factorization.

71294449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47075.

The product of its digits is 72576, while the sum is 40.

The square root of 71294449 is about 8443.6040290862. The cubic root of 71294449 is about 414.6534078184.

The spelling of 71294449 in words is "seventy-one million, two hundred ninety-four thousand, four hundred forty-nine".