742224871 has 2 divisors, whose sum is σ = 742224872. Its totient is φ = 742224870.

The previous prime is 742224863. The next prime is 742224877. The reversal of 742224871 is 178422247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 742224871 - 2³ = 742224863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 742224871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742224877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371112435 + 371112436.

It is an arithmetic number, because the mean of its divisors is an integer number (371112436).

Almost surely, 2^742224871 is an apocalyptic number.

742224871 is a deficient number, since it is larger than the sum of its proper divisors (1).

742224871 is an equidigital number, since it uses as much as digits as its factorization.

742224871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50176, while the sum is 37.

The square root of 742224871 is about 27243.8042681267. The cubic root of 742224871 is about 905.4097514699.

The spelling of 742224871 in words is "seven hundred forty-two million, two hundred twenty-four thousand, eight hundred seventy-one".