71030887 has 2 divisors, whose sum is σ = 71030888. Its totient is φ = 71030886.

The previous prime is 71030881. The next prime is 71030893. The reversal of 71030887 is 78803017.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (71030881) and next prime (71030893).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71030887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71030881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35515443 + 35515444.

It is an arithmetic number, because the mean of its divisors is an integer number (35515444).

Almost surely, 2^71030887 is an apocalyptic number.

71030887 is a deficient number, since it is larger than the sum of its proper divisors (1).

71030887 is an equidigital number, since it uses as much as digits as its factorization.

71030887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 71030887 is about 8427.9823801429. The cubic root of 71030887 is about 414.1418119827.

It can be divided in two parts, 71030 and 887, that added together give a palindrome (71917).

The spelling of 71030887 in words is "seventy-one million, thirty thousand, eight hundred eighty-seven".