742541717 has 4 divisors (see below), whose sum is σ = 781622880. Its totient is φ = 703460556.

The previous prime is 742541699. The next prime is 742541719. The reversal of 742541717 is 717145247.

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.

It is a cyclic number.

It is not a de Polignac number, because 742541717 - 2²⁶ = 675432853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742541719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19540553 + ... + 19540590.

It is an arithmetic number, because the mean of its divisors is an integer number (195405720).

Almost surely, 2^742541717 is an apocalyptic number.

It is an amenable number.

742541717 is a deficient number, since it is larger than the sum of its proper divisors (39081163).

742541717 is a wasteful number, since it uses less digits than its factorization.

742541717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39081162.

The product of its digits is 54880, while the sum is 38.

The square root of 742541717 is about 27249.6186578822. The cubic root of 742541717 is about 905.5385689653.

The spelling of 742541717 in words is "seven hundred forty-two million, five hundred forty-one thousand, seven hundred seventeen".