742222087 has 2 divisors, whose sum is σ = 742222088. Its totient is φ = 742222086.

The previous prime is 742222049. The next prime is 742222141. The reversal of 742222087 is 780222247.

742222087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 742222087 - 2⁷ = 742221959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742222007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371111043 + 371111044.

It is an arithmetic number, because the mean of its divisors is an integer number (371111044).

Almost surely, 2^742222087 is an apocalyptic number.

742222087 is a deficient number, since it is larger than the sum of its proper divisors (1).

742222087 is an equidigital number, since it uses as much as digits as its factorization.

742222087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 742222087 is about 27243.7531738929. The cubic root of 742222087 is about 905.4086194392.

The spelling of 742222087 in words is "seven hundred forty-two million, two hundred twenty-two thousand, eighty-seven".