742606247 has 2 divisors, whose sum is σ = 742606248. Its totient is φ = 742606246.

The previous prime is 742606231. The next prime is 742606261.

742606247 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 742606247 - 2⁴ = 742606231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 742606247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742606547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371303123 + 371303124.

It is an arithmetic number, because the mean of its divisors is an integer number (371303124).

Almost surely, 2^742606247 is an apocalyptic number.

742606247 is a deficient number, since it is larger than the sum of its proper divisors (1).

742606247 is an equidigital number, since it uses as much as digits as its factorization.

742606247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 742606247 is about 27250.8026854256. The cubic root of 742606247 is about 905.5647999095.

The spelling of 742606247 in words is "seven hundred forty-two million, six hundred six thousand, two hundred forty-seven".