71442799 has 2 divisors, whose sum is σ = 71442800. Its totient is φ = 71442798.

The previous prime is 71442779. The next prime is 71442809. The reversal of 71442799 is 99724417.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71442799 - 2¹³ = 71434607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71442739) 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, 35721399 + 35721400.

It is an arithmetic number, because the mean of its divisors is an integer number (35721400).

Almost surely, 2^71442799 is an apocalyptic number.

71442799 is a deficient number, since it is larger than the sum of its proper divisors (1).

71442799 is an equidigital number, since it uses as much as digits as its factorization.

71442799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 71442799 is about 8452.3842198518. The cubic root of 71442799 is about 414.9408131589.

The spelling of 71442799 in words is "seventy-one million, four hundred forty-two thousand, seven hundred ninety-nine".