71206937 has 2 divisors, whose sum is σ = 71206938. Its totient is φ = 71206936.

The previous prime is 71206913. The next prime is 71206939. The reversal of 71206937 is 73960217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59228416 + 11978521 = 7696^2 + 3461^2 .

It is a cyclic number.

It is not a de Polignac number, because 71206937 - 2¹⁶ = 71141401 is a prime.

Together with 71206939, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71206897 and 71206906.

It is not a weakly prime, because it can be changed into another prime (71206939) 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, 35603468 + 35603469.

It is an arithmetic number, because the mean of its divisors is an integer number (35603469).

Almost surely, 2^71206937 is an apocalyptic number.

It is an amenable number.

71206937 is a deficient number, since it is larger than the sum of its proper divisors (1).

71206937 is an equidigital number, since it uses as much as digits as its factorization.

71206937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 71206937 is about 8438.4202905520. The cubic root of 71206937 is about 414.4836797548.

The spelling of 71206937 in words is "seventy-one million, two hundred six thousand, nine hundred thirty-seven".