71392901 has 2 divisors, whose sum is σ = 71392902. Its totient is φ = 71392900.

The previous prime is 71392889. The next prime is 71392921. The reversal of 71392901 is 10929317.

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., 50908225 + 20484676 = 7135^2 + 4526^2 .

It is a cyclic number.

It is not a de Polignac number, because 71392901 - 2¹⁰ = 71391877 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71392921) 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, 35696450 + 35696451.

It is an arithmetic number, because the mean of its divisors is an integer number (35696451).

Almost surely, 2^71392901 is an apocalyptic number.

It is an amenable number.

71392901 is a deficient number, since it is larger than the sum of its proper divisors (1).

71392901 is an equidigital number, since it uses as much as digits as its factorization.

71392901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 71392901 is about 8449.4319927437. The cubic root of 71392901 is about 414.8441878907.

The spelling of 71392901 in words is "seventy-one million, three hundred ninety-two thousand, nine hundred one".