742066649 has 2 divisors, whose sum is σ = 742066650. Its totient is φ = 742066648.

The previous prime is 742066627. The next prime is 742066669. The reversal of 742066649 is 946660247.

742066649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 637209049 + 104857600 = 25243^2 + 10240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742066649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (742066669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371033324 + 371033325.

It is an arithmetic number, because the mean of its divisors is an integer number (371033325).

Almost surely, 2^742066649 is an apocalyptic number.

It is an amenable number.

742066649 is a deficient number, since it is larger than the sum of its proper divisors (1).

742066649 is an equidigital number, since it uses as much as digits as its factorization.

742066649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 742066649 is about 27240.9002971635. The cubic root of 742066649 is about 905.3454107164.

The spelling of 742066649 in words is "seven hundred forty-two million, sixty-six thousand, six hundred forty-nine".