71204893 has 2 divisors, whose sum is σ = 71204894. Its totient is φ = 71204892.

The previous prime is 71204879. The next prime is 71204911. The reversal of 71204893 is 39840217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68508729 + 2696164 = 8277^2 + 1642^2 .

It is an emirp because it is prime and its reverse (39840217) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71204893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71204813) 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, 35602446 + 35602447.

It is an arithmetic number, because the mean of its divisors is an integer number (35602447).

Almost surely, 2^71204893 is an apocalyptic number.

It is an amenable number.

71204893 is a deficient number, since it is larger than the sum of its proper divisors (1).

71204893 is an equidigital number, since it uses as much as digits as its factorization.

71204893 is an odious number, because the sum of its binary digits is odd.

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

The square root of 71204893 is about 8438.2991769669. The cubic root of 71204893 is about 414.4797137894.

The spelling of 71204893 in words is "seventy-one million, two hundred four thousand, eight hundred ninety-three".