71630633 has 2 divisors, whose sum is σ = 71630634. Its totient is φ = 71630632.

The previous prime is 71630623. The next prime is 71630651. The reversal of 71630633 is 33603617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51308569 + 20322064 = 7163^2 + 4508^2 .

It is an emirp because it is prime and its reverse (33603617) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71630633 - 2⁴ = 71630617 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71630596 and 71630605.

It is not a weakly prime, because it can be changed into another prime (71630623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35815316 + 35815317.

It is an arithmetic number, because the mean of its divisors is an integer number (35815317).

Almost surely, 2^71630633 is an apocalyptic number.

It is an amenable number.

71630633 is a deficient number, since it is larger than the sum of its proper divisors (1).

71630633 is an equidigital number, since it uses as much as digits as its factorization.

71630633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 71630633 is about 8463.4882288569. The cubic root of 71630633 is about 415.3041424611.

The spelling of 71630633 in words is "seventy-one million, six hundred thirty thousand, six hundred thirty-three".