734909 has 4 divisors (see below), whose sum is σ = 839904. Its totient is φ = 629916.

The previous prime is 734897. The next prime is 734911. The reversal of 734909 is 909437.

It is a happy number.

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 not a de Polignac number, because 734909 - 2⁸ = 734653 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 (734959) 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, 52487 + ... + 52500.

It is an arithmetic number, because the mean of its divisors is an integer number (209976).

2⁷³⁴⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

734909 is a deficient number, since it is larger than the sum of its proper divisors (104995).

734909 is a wasteful number, since it uses less digits than its factorization.

734909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104994.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 734909 is about 857.2683360535. The cubic root of 734909 is about 90.2425146556.

The spelling of 734909 in words is "seven hundred thirty-four thousand, nine hundred nine".