71447801 has 8 divisors (see below), whose sum is σ = 72633960. Its totient is φ = 70267392.

The previous prime is 71447791. The next prime is 71447833. The reversal of 71447801 is 10874417.

It can be written as a sum of positive squares in 4 ways, for example, as 8404201 + 63043600 = 2899^2 + 7940^2 .

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 71447801 - 2⁶ = 71447737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71447891) 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, 28661 + ... + 31053.

It is an arithmetic number, because the mean of its divisors is an integer number (9079245).

Almost surely, 2^71447801 is an apocalyptic number.

It is an amenable number.

71447801 is a deficient number, since it is larger than the sum of its proper divisors (1186159).

71447801 is a wasteful number, since it uses less digits than its factorization.

71447801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 71447801 is about 8452.6801075162. The cubic root of 71447801 is about 414.9504968291.

The spelling of 71447801 in words is "seventy-one million, four hundred forty-seven thousand, eight hundred one".