731409485 has 4 divisors (see below), whose sum is σ = 877691388. Its totient is φ = 585127584.

The previous prime is 731409473. The next prime is 731409491. The reversal of 731409485 is 584904137.

731409485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584904137 = 109 ⋅5366093.

It can be written as a sum of positive squares in 2 ways, for example, as 378458116 + 352951369 = 19454^2 + 18787^2 .

It is a cyclic number.

It is not a de Polignac number, because 731409485 - 2¹⁴ = 731393101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73140944 + ... + 73140953.

It is an arithmetic number, because the mean of its divisors is an integer number (219422847).

Almost surely, 2^731409485 is an apocalyptic number.

It is an amenable number.

731409485 is a deficient number, since it is larger than the sum of its proper divisors (146281903).

731409485 is a wasteful number, since it uses less digits than its factorization.

731409485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146281902.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 731409485 is about 27044.5832839036. The cubic root of 731409485 is about 900.9904671853.

The spelling of 731409485 in words is "seven hundred thirty-one million, four hundred nine thousand, four hundred eighty-five".