71487079 has 2 divisors, whose sum is σ = 71487080. Its totient is φ = 71487078.

The previous prime is 71487061. The next prime is 71487083. The reversal of 71487079 is 97078417.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71487079 - 2⁷ = 71486951 is a prime.

It is a super-2 number, since 2×71487079² = 10220804927904482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71487049) 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, 35743539 + 35743540.

It is an arithmetic number, because the mean of its divisors is an integer number (35743540).

Almost surely, 2^71487079 is an apocalyptic number.

71487079 is a deficient number, since it is larger than the sum of its proper divisors (1).

71487079 is an equidigital number, since it uses as much as digits as its factorization.

71487079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 71487079 is about 8455.0031933761. The cubic root of 71487079 is about 415.0265217482.

The spelling of 71487079 in words is "seventy-one million, four hundred eighty-seven thousand, seventy-nine".