71362861 has 2 divisors, whose sum is σ = 71362862. Its totient is φ = 71362860.

The previous prime is 71362853. The next prime is 71362871. The reversal of 71362861 is 16826317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58446025 + 12916836 = 7645^2 + 3594^2 .

It is a cyclic number.

It is not a de Polignac number, because 71362861 - 2³ = 71362853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71362871) 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, 35681430 + 35681431.

It is an arithmetic number, because the mean of its divisors is an integer number (35681431).

Almost surely, 2^71362861 is an apocalyptic number.

It is an amenable number.

71362861 is a deficient number, since it is larger than the sum of its proper divisors (1).

71362861 is an equidigital number, since it uses as much as digits as its factorization.

71362861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 71362861 is about 8447.6541714253. The cubic root of 71362861 is about 414.7859950475.

The spelling of 71362861 in words is "seventy-one million, three hundred sixty-two thousand, eight hundred sixty-one".