727704 has 40 divisors (see below), whose sum is σ = 2040060. Its totient is φ = 242352.

The previous prime is 727703. The next prime is 727711. The reversal of 727704 is 407727.

It is a happy number.

It is a super-2 number, since 2×727704² = 1059106223232, which contains 22 as substring.

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 (727703) 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, 87 + ... + 1209.

2⁷²⁷⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 727704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1020030).

727704 is an abundant number, since it is smaller than the sum of its proper divisors (1312356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

727704 is a wasteful number, since it uses less digits than its factorization.

727704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 727704 is about 853.0556839972. The cubic root of 727704 is about 89.9466350305.

It can be divided in two parts, 727 and 704, that added together give a triangular number (1431 = T₅₃).

The spelling of 727704 in words is "seven hundred twenty-seven thousand, seven hundred four", and thus it is an iban number.