742224877 has 2 divisors, whose sum is σ = 742224878. Its totient is φ = 742224876.

The previous prime is 742224871. The next prime is 742224887. The reversal of 742224877 is 778422247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 738426276 + 3798601 = 27174^2 + 1949^2 .

It is a cyclic number.

It is not a de Polignac number, because 742224877 - 2¹⁵ = 742192109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742224871) 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, 371112438 + 371112439.

It is an arithmetic number, because the mean of its divisors is an integer number (371112439).

Almost surely, 2^742224877 is an apocalyptic number.

It is an amenable number.

742224877 is a deficient number, since it is larger than the sum of its proper divisors (1).

742224877 is an equidigital number, since it uses as much as digits as its factorization.

742224877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 351232, while the sum is 43.

The square root of 742224877 is about 27243.8043782435. The cubic root of 742224877 is about 905.4097539096.

The spelling of 742224877 in words is "seven hundred forty-two million, two hundred twenty-four thousand, eight hundred seventy-seven".