742843717 has 16 divisors (see below), whose sum is σ = 930816000. Its totient is φ = 575918640.

The previous prime is 742843691. The next prime is 742843723. The reversal of 742843717 is 717348247.

It is not a de Polignac number, because 742843717 - 2¹⁵ = 742810949 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 (742843417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8917 + ... + 39562.

It is an arithmetic number, because the mean of its divisors is an integer number (58176000).

Almost surely, 2^742843717 is an apocalyptic number.

742843717 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

742843717 is a deficient number, since it is larger than the sum of its proper divisors (187972283).

742843717 is a wasteful number, since it uses less digits than its factorization.

742843717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48696.

The product of its digits is 263424, while the sum is 43.

The square root of 742843717 is about 27255.1594565139. The cubic root of 742843717 is about 905.6613165385.

The spelling of 742843717 in words is "seven hundred forty-two million, eight hundred forty-three thousand, seven hundred seventeen".