742947097 has 2 divisors, whose sum is σ = 742947098. Its totient is φ = 742947096.

The previous prime is 742947091. The next prime is 742947109. The reversal of 742947097 is 790749247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 652240521 + 90706576 = 25539^2 + 9524^2 .

It is a cyclic number.

It is not a de Polignac number, because 742947097 - 2²⁷ = 608729369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 742947097.

It is not a weakly prime, because it can be changed into another prime (742947091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371473548 + 371473549.

It is an arithmetic number, because the mean of its divisors is an integer number (371473549).

Almost surely, 2^742947097 is an apocalyptic number.

It is an amenable number.

742947097 is a deficient number, since it is larger than the sum of its proper divisors (1).

742947097 is an equidigital number, since it uses as much as digits as its factorization.

742947097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 49.

The square root of 742947097 is about 27257.0559121854. The cubic root of 742947097 is about 905.7033275842.

The spelling of 742947097 in words is "seven hundred forty-two million, nine hundred forty-seven thousand, ninety-seven".