71440633 has 8 divisors (see below), whose sum is σ = 78708096. Its totient is φ = 64302000.

The previous prime is 71440631. The next prime is 71440637. The reversal of 71440633 is 33604417.

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 71440633 - 2¹ = 71440631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71440631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31041 + ... + 33262.

It is an arithmetic number, because the mean of its divisors is an integer number (9838512).

Almost surely, 2^71440633 is an apocalyptic number.

It is an amenable number.

71440633 is a deficient number, since it is larger than the sum of its proper divisors (7267463).

71440633 is a wasteful number, since it uses less digits than its factorization.

71440633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64415.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 71440633 is about 8452.2560893527. The cubic root of 71440633 is about 414.9366197300.

The spelling of 71440633 in words is "seventy-one million, four hundred forty thousand, six hundred thirty-three".