71436769 has 2 divisors, whose sum is σ = 71436770. Its totient is φ = 71436768.

The previous prime is 71436763. The next prime is 71436791. The reversal of 71436769 is 96763417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61826769 + 9610000 = 7863^2 + 3100^2 .

It is a cyclic number.

It is not a de Polignac number, because 71436769 - 2⁷ = 71436641 is a prime.

It is a super-2 number, since 2×71436769² = 10206423930318722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71436763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35718384 + 35718385.

It is an arithmetic number, because the mean of its divisors is an integer number (35718385).

Almost surely, 2^71436769 is an apocalyptic number.

It is an amenable number.

71436769 is a deficient number, since it is larger than the sum of its proper divisors (1).

71436769 is an equidigital number, since it uses as much as digits as its factorization.

71436769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 43.

The square root of 71436769 is about 8452.0275082373. The cubic root of 71436769 is about 414.9291387213.

The spelling of 71436769 in words is "seventy-one million, four hundred thirty-six thousand, seven hundred sixty-nine".