727481 has 4 divisors (see below), whose sum is σ = 770292. Its totient is φ = 684672.

The previous prime is 727471. The next prime is 727483. The reversal of 727481 is 184727.

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

It can be written as a sum of positive squares in 2 ways, for example, as 477481 + 250000 = 691^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 727481 - 2¹⁰ = 726457 is a prime.

It is a super-2 number, since 2×727481² = 1058457210722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727483) 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, 21380 + ... + 21413.

It is an arithmetic number, because the mean of its divisors is an integer number (192573).

2⁷²⁷⁴⁸¹ is an apocalyptic number.

It is an amenable number.

727481 is a deficient number, since it is larger than the sum of its proper divisors (42811).

727481 is a wasteful number, since it uses less digits than its factorization.

727481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42810.

The product of its digits is 3136, while the sum is 29.

The square root of 727481 is about 852.9249673916. The cubic root of 727481 is about 89.9374462445.

The spelling of 727481 in words is "seven hundred twenty-seven thousand, four hundred eighty-one".