71868633 has 16 divisors (see below), whose sum is σ = 99225600. Its totient is φ = 46221840.

The previous prime is 71868611. The next prime is 71868637. The reversal of 71868633 is 33686817.

It is not a de Polignac number, because 71868633 - 2¹⁸ = 71606489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71868637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34228 + ... + 36266.

It is an arithmetic number, because the mean of its divisors is an integer number (6201600).

Almost surely, 2^71868633 is an apocalyptic number.

It is an amenable number.

71868633 is a deficient number, since it is larger than the sum of its proper divisors (27356967).

71868633 is a wasteful number, since it uses less digits than its factorization.

71868633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452.

The product of its digits is 145152, while the sum is 42.

The square root of 71868633 is about 8477.5369654163. The cubic root of 71868633 is about 415.7635972694.

The spelling of 71868633 in words is "seventy-one million, eight hundred sixty-eight thousand, six hundred thirty-three".