71362789 has 2 divisors, whose sum is σ = 71362790. Its totient is φ = 71362788.

The previous prime is 71362763. The next prime is 71362817. The reversal of 71362789 is 98726317.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70812225 + 550564 = 8415^2 + 742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71362789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71369789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35681394 + 35681395.

It is an arithmetic number, because the mean of its divisors is an integer number (35681395).

Almost surely, 2^71362789 is an apocalyptic number.

It is an amenable number.

71362789 is a deficient number, since it is larger than the sum of its proper divisors (1).

71362789 is an equidigital number, since it uses as much as digits as its factorization.

71362789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 71362789 is about 8447.6499098862. The cubic root of 71362789 is about 414.7858555510.

The spelling of 71362789 in words is "seventy-one million, three hundred sixty-two thousand, seven hundred eighty-nine".