731349 has 10 divisors (see below), whose sum is σ = 1092630. Its totient is φ = 487512.

The previous prime is 731333. The next prime is 731359. The reversal of 731349 is 943137.

731349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 731025 + 324 = 855^2 + 18^2 .

It is not a de Polignac number, because 731349 - 2⁴ = 731333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731359) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4434 + ... + 4595.

It is an arithmetic number, because the mean of its divisors is an integer number (109263).

2⁷³¹³⁴⁹ is an apocalyptic number.

It is an amenable number.

731349 is a deficient number, since it is larger than the sum of its proper divisors (361281).

731349 is an equidigital number, since it uses as much as digits as its factorization.

731349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041 (or 9032 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 731349 is about 855.1894526945. The cubic root of 731349 is about 90.0965630250.

The spelling of 731349 in words is "seven hundred thirty-one thousand, three hundred forty-nine".