742224887 has 2 divisors, whose sum is σ = 742224888. Its totient is φ = 742224886.

The previous prime is 742224877. The next prime is 742224907. The reversal of 742224887 is 788422247.

It is a weak prime.

It is an emirp because it is prime and its reverse (788422247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 742224887 - 2⁴ = 742224871 is a prime.

It is a Chen prime.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 371112443 + 371112444.

It is an arithmetic number, because the mean of its divisors is an integer number (371112444).

Almost surely, 2^742224887 is an apocalyptic number.

742224887 is a deficient number, since it is larger than the sum of its proper divisors (1).

742224887 is an equidigital number, since it uses as much as digits as its factorization.

742224887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 401408, while the sum is 44.

The square root of 742224887 is about 27243.8045617715. The cubic root of 742224887 is about 905.4097579758.

The spelling of 742224887 in words is "seven hundred forty-two million, two hundred twenty-four thousand, eight hundred eighty-seven".