71063887 has 2 divisors, whose sum is σ = 71063888. Its totient is φ = 71063886.

The previous prime is 71063869. The next prime is 71063899. The reversal of 71063887 is 78836017.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71063887 - 2¹¹ = 71061839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71063387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35531943 + 35531944.

It is an arithmetic number, because the mean of its divisors is an integer number (35531944).

Almost surely, 2^71063887 is an apocalyptic number.

71063887 is a deficient number, since it is larger than the sum of its proper divisors (1).

71063887 is an equidigital number, since it uses as much as digits as its factorization.

71063887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 71063887 is about 8429.9399167491. The cubic root of 71063887 is about 414.2059369686.

The spelling of 71063887 in words is "seventy-one million, sixty-three thousand, eight hundred eighty-seven".