731906343 has 12 divisors (see below), whose sum is σ = 1208226448. Its totient is φ = 418232160.

The previous prime is 731906341. The next prime is 731906359. The reversal of 731906343 is 343609137.

731906343 is a `hidden beast` number, since 7 + 3 + 19 + 0 + 634 + 3 = 666.

It is not a de Polignac number, because 731906343 - 2¹ = 731906341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 731906298 and 731906307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731906341) 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 11 ways as a sum of consecutive naturals, for example, 5808718 + ... + 5808843.

Almost surely, 2^731906343 is an apocalyptic number.

731906343 is a deficient number, since it is larger than the sum of its proper divisors (476320105).

731906343 is a wasteful number, since it uses less digits than its factorization.

731906343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11617574 (or 11617571 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 731906343 is about 27053.7676304059. The cubic root of 731906343 is about 901.1944400169.

The spelling of 731906343 in words is "seven hundred thirty-one million, nine hundred six thousand, three hundred forty-three".