738731 has 4 divisors (see below), whose sum is σ = 844272. Its totient is φ = 633192.

The previous prime is 738721. The next prime is 738743. The reversal of 738731 is 137837.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 738731 - 2¹⁸ = 476587 is a prime.

It is a super-2 number, since 2×738731² = 1091446980722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 738694 and 738703.

It is not an unprimeable number, because it can be changed into a prime (738721) 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 3 ways as a sum of consecutive naturals, for example, 52760 + ... + 52773.

It is an arithmetic number, because the mean of its divisors is an integer number (211068).

2⁷³⁸⁷³¹ is an apocalyptic number.

738731 is a deficient number, since it is larger than the sum of its proper divisors (105541).

738731 is a wasteful number, since it uses less digits than its factorization.

738731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105540.

The product of its digits is 3528, while the sum is 29.

The square root of 738731 is about 859.4946189477. The cubic root of 738731 is about 90.3986839681.

The spelling of 738731 in words is "seven hundred thirty-eight thousand, seven hundred thirty-one".