71887007 has 2 divisors, whose sum is σ = 71887008. Its totient is φ = 71887006.

The previous prime is 71886979. The next prime is 71887021. The reversal of 71887007 is 70078817.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71887007 - 2⁸ = 71886751 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71887307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35943503 + 35943504.

It is an arithmetic number, because the mean of its divisors is an integer number (35943504).

Almost surely, 2^71887007 is an apocalyptic number.

71887007 is a deficient number, since it is larger than the sum of its proper divisors (1).

71887007 is an equidigital number, since it uses as much as digits as its factorization.

71887007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21952, while the sum is 38.

The square root of 71887007 is about 8478.6205835619. The cubic root of 71887007 is about 415.7990257500.

The spelling of 71887007 in words is "seventy-one million, eight hundred eighty-seven thousand, seven".