71347069 has 2 divisors, whose sum is σ = 71347070. Its totient is φ = 71347068.

The previous prime is 71347057. The next prime is 71347097. The reversal of 71347069 is 96074317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61042969 + 10304100 = 7813^2 + 3210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71347069 is a prime.

It is a super-2 number, since 2×71347069² = 10180808509781522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71347099) 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, 35673534 + 35673535.

It is an arithmetic number, because the mean of its divisors is an integer number (35673535).

Almost surely, 2^71347069 is an apocalyptic number.

It is an amenable number.

71347069 is a deficient number, since it is larger than the sum of its proper divisors (1).

71347069 is an equidigital number, since it uses as much as digits as its factorization.

71347069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 71347069 is about 8446.7194223556. The cubic root of 71347069 is about 414.7553965747.

The spelling of 71347069 in words is "seventy-one million, three hundred forty-seven thousand, sixty-nine".