742709 has 8 divisors (see below), whose sum is σ = 816480. Its totient is φ = 670000.

The previous prime is 742699. The next prime is 742711. The reversal of 742709 is 907247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742709 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 (742759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2627 + ... + 2895.

It is an arithmetic number, because the mean of its divisors is an integer number (102060).

2⁷⁴²⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

742709 is a deficient number, since it is larger than the sum of its proper divisors (73771).

742709 is a wasteful number, since it uses less digits than its factorization.

742709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 742709 is about 861.8056625481. The cubic root of 742709 is about 90.5606565071.

The spelling of 742709 in words is "seven hundred forty-two thousand, seven hundred nine".