731832641 has 4 divisors (see below), whose sum is σ = 732388800. Its totient is φ = 731276484.

The previous prime is 731832631. The next prime is 731832659. The reversal of 731832641 is 146238137.

731832641 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-731832641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731832601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276101 + ... + 278738.

It is an arithmetic number, because the mean of its divisors is an integer number (183097200).

Almost surely, 2^731832641 is an apocalyptic number.

It is an amenable number.

731832641 is a deficient number, since it is larger than the sum of its proper divisors (556159).

731832641 is a wasteful number, since it uses less digits than its factorization.

731832641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556158.

The product of its digits is 24192, while the sum is 35.

The square root of 731832641 is about 27052.4054568166. The cubic root of 731832641 is about 901.1641893057.

The spelling of 731832641 in words is "seven hundred thirty-one million, eight hundred thirty-two thousand, six hundred forty-one".