71047633 has 2 divisors, whose sum is σ = 71047634. Its totient is φ = 71047632.

The previous prime is 71047619. The next prime is 71047637. The reversal of 71047633 is 33674017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67617729 + 3429904 = 8223^2 + 1852^2 .

It is a cyclic number.

It is not a de Polignac number, because 71047633 - 2⁵ = 71047601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71047595 and 71047604.

It is not a weakly prime, because it can be changed into another prime (71047637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35523816 + 35523817.

It is an arithmetic number, because the mean of its divisors is an integer number (35523817).

Almost surely, 2^71047633 is an apocalyptic number.

It is an amenable number.

71047633 is a deficient number, since it is larger than the sum of its proper divisors (1).

71047633 is an equidigital number, since it uses as much as digits as its factorization.

71047633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 71047633 is about 8428.9757978060. The cubic root of 71047633 is about 414.1743549797.

The spelling of 71047633 in words is "seventy-one million, forty-seven thousand, six hundred thirty-three".