71120887 has 2 divisors, whose sum is σ = 71120888. Its totient is φ = 71120886.

The previous prime is 71120837. The next prime is 71120891. The reversal of 71120887 is 78802117.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71120887 - 2¹⁹ = 70596599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71120827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35560443 + 35560444.

It is an arithmetic number, because the mean of its divisors is an integer number (35560444).

Almost surely, 2^71120887 is an apocalyptic number.

71120887 is a deficient number, since it is larger than the sum of its proper divisors (1).

71120887 is an equidigital number, since it uses as much as digits as its factorization.

71120887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 71120887 is about 8433.3200461028. The cubic root of 71120887 is about 414.3166515654.

The spelling of 71120887 in words is "seventy-one million, one hundred twenty thousand, eight hundred eighty-seven".