71079851 has 2 divisors, whose sum is σ = 71079852. Its totient is φ = 71079850.

The previous prime is 71079809. The next prime is 71079857. The reversal of 71079851 is 15897017.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71079851 - 2⁶ = 71079787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71079857) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35539925 + 35539926.

It is an arithmetic number, because the mean of its divisors is an integer number (35539926).

Almost surely, 2^71079851 is an apocalyptic number.

71079851 is a deficient number, since it is larger than the sum of its proper divisors (1).

71079851 is an equidigital number, since it uses as much as digits as its factorization.

71079851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 71079851 is about 8430.8867267921. The cubic root of 71079851 is about 414.2369507919.

The spelling of 71079851 in words is "seventy-one million, seventy-nine thousand, eight hundred fifty-one".