71057441 has 8 divisors (see below), whose sum is σ = 87455424. Its totient is φ = 56221200.

The previous prime is 71057423. The next prime is 71057449. The reversal of 71057441 is 14475017.

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

It is not a de Polignac number, because 71057441 - 2⁶ = 71057377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71057449) 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, 390335 + ... + 390516.

It is an arithmetic number, because the mean of its divisors is an integer number (10931928).

Almost surely, 2^71057441 is an apocalyptic number.

It is an amenable number.

71057441 is a deficient number, since it is larger than the sum of its proper divisors (16397983).

71057441 is a wasteful number, since it uses less digits than its factorization.

71057441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780871.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 71057441 is about 8429.5575803241. The cubic root of 71057441 is about 414.1934127817.

The spelling of 71057441 in words is "seventy-one million, fifty-seven thousand, four hundred forty-one".