731163406 has 8 divisors (see below), whose sum is σ = 1097517960. Its totient is φ = 365324088.

The previous prime is 731163361. The next prime is 731163481. The reversal of 731163406 is 604361137.

731163406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 125241 + ... + 130948.

It is an arithmetic number, because the mean of its divisors is an integer number (137189745).

Almost surely, 2^731163406 is an apocalyptic number.

731163406 is a deficient number, since it is larger than the sum of its proper divisors (366354554).

731163406 is a wasteful number, since it uses less digits than its factorization.

731163406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257618.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 731163406 is about 27040.0333949498. The cubic root of 731163406 is about 900.8894112983.

The spelling of 731163406 in words is "seven hundred thirty-one million, one hundred sixty-three thousand, four hundred six".