731038243 has 8 divisors (see below), whose sum is σ = 828707600. Its totient is φ = 639288288.

The previous prime is 731038237. The next prime is 731038247. The reversal of 731038243 is 342830137.

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

It is a de Polignac number, because none of the positive numbers 2^k-731038243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731038247) 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 7 ways as a sum of consecutive naturals, for example, 1479588 + ... + 1480081.

It is an arithmetic number, because the mean of its divisors is an integer number (103588450).

Almost surely, 2^731038243 is an apocalyptic number.

731038243 is a deficient number, since it is larger than the sum of its proper divisors (97669357).

731038243 is a wasteful number, since it uses less digits than its factorization.

731038243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959701.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 731038243 is about 27037.7188941671. The cubic root of 731038243 is about 900.8380026094.

The spelling of 731038243 in words is "seven hundred thirty-one million, thirty-eight thousand, two hundred forty-three".