742827647 has 2 divisors, whose sum is σ = 742827648. Its totient is φ = 742827646.

The previous prime is 742827607. The next prime is 742827661. The reversal of 742827647 is 746728247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 742827647 - 2⁶ = 742827583 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 (742827607) 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, 371413823 + 371413824.

It is an arithmetic number, because the mean of its divisors is an integer number (371413824).

Almost surely, 2^742827647 is an apocalyptic number.

742827647 is a deficient number, since it is larger than the sum of its proper divisors (1).

742827647 is an equidigital number, since it uses as much as digits as its factorization.

742827647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1053696, while the sum is 47.

The square root of 742827647 is about 27254.8646483522. The cubic root of 742827647 is about 905.6547857425.

The spelling of 742827647 in words is "seven hundred forty-two million, eight hundred twenty-seven thousand, six hundred forty-seven".