71248799 has 2 divisors, whose sum is σ = 71248800. Its totient is φ = 71248798.

The previous prime is 71248781. The next prime is 71248847. The reversal of 71248799 is 99784217.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71248799 - 2¹⁶ = 71183263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71248739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35624399 + 35624400.

It is an arithmetic number, because the mean of its divisors is an integer number (35624400).

Almost surely, 2^71248799 is an apocalyptic number.

71248799 is a deficient number, since it is larger than the sum of its proper divisors (1).

71248799 is an equidigital number, since it uses as much as digits as its factorization.

71248799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 47.

The square root of 71248799 is about 8440.9003666671. The cubic root of 71248799 is about 414.5648877450.

The spelling of 71248799 in words is "seventy-one million, two hundred forty-eight thousand, seven hundred ninety-nine".