742885691 has 2 divisors, whose sum is σ = 742885692. Its totient is φ = 742885690.

The previous prime is 742885681. The next prime is 742885729. The reversal of 742885691 is 196588247.

742885691 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 a de Polignac number, because none of the positive numbers 2^k-742885691 is a prime.

It is not a weakly prime, because it can be changed into another prime (742885631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371442845 + 371442846.

It is an arithmetic number, because the mean of its divisors is an integer number (371442846).

Almost surely, 2^742885691 is an apocalyptic number.

742885691 is a deficient number, since it is larger than the sum of its proper divisors (1).

742885691 is an equidigital number, since it uses as much as digits as its factorization.

742885691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 50.

The square root of 742885691 is about 27255.9294649806. The cubic root of 742885691 is about 905.6783741920.

The spelling of 742885691 in words is "seven hundred forty-two million, eight hundred eighty-five thousand, six hundred ninety-one".