71266077 has 12 divisors (see below), whose sum is σ = 105451164. Its totient is φ = 46351680.

The previous prime is 71266073. The next prime is 71266109. The reversal of 71266077 is 77066217.

It can be written as a sum of positive squares in 2 ways, for example, as 1610361 + 69655716 = 1269^2 + 8346^2 .

It is not a de Polignac number, because 71266077 - 2² = 71266073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71266073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96198 + ... + 96935.

It is an arithmetic number, because the mean of its divisors is an integer number (8787597).

Almost surely, 2^71266077 is an apocalyptic number.

It is an amenable number.

71266077 is a deficient number, since it is larger than the sum of its proper divisors (34185087).

71266077 is a wasteful number, since it uses less digits than its factorization.

71266077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193180 (or 193177 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 71266077 is about 8441.9237736431. The cubic root of 71266077 is about 414.5983960207.

It can be divided in two parts, 7126 and 6077, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 71266077 in words is "seventy-one million, two hundred sixty-six thousand, seventy-seven".