742859729 has 2 divisors, whose sum is σ = 742859730. Its totient is φ = 742859728.

The previous prime is 742859717. The next prime is 742859779. The reversal of 742859729 is 927958247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389983504 + 352876225 = 19748^2 + 18785^2 .

It is a cyclic number.

It is not a de Polignac number, because 742859729 - 2²⁰ = 741811153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (742859779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371429864 + 371429865.

It is an arithmetic number, because the mean of its divisors is an integer number (371429865).

Almost surely, 2^742859729 is an apocalyptic number.

It is an amenable number.

742859729 is a deficient number, since it is larger than the sum of its proper divisors (1).

742859729 is an equidigital number, since it uses as much as digits as its factorization.

742859729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 53.

The square root of 742859729 is about 27255.4531974796. The cubic root of 742859729 is about 905.6678236698.

The spelling of 742859729 in words is "seven hundred forty-two million, eight hundred fifty-nine thousand, seven hundred twenty-nine".