742710817 has 4 divisors (see below), whose sum is σ = 781800880. Its totient is φ = 703620756.

The previous prime is 742710811. The next prime is 742710863. The reversal of 742710817 is 718017247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 718017247 = 1931 ⋅371837.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742710817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742710811) 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 in 3 ways as a sum of consecutive naturals, for example, 19545003 + ... + 19545040.

It is an arithmetic number, because the mean of its divisors is an integer number (195450220).

Almost surely, 2^742710817 is an apocalyptic number.

It is an amenable number.

742710817 is a deficient number, since it is larger than the sum of its proper divisors (39090063).

742710817 is a wasteful number, since it uses less digits than its factorization.

742710817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39090062.

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 742710817 is about 27252.7212769661. The cubic root of 742710817 is about 905.6073035769.

The spelling of 742710817 in words is "seven hundred forty-two million, seven hundred ten thousand, eight hundred seventeen".