270729 has 16 divisors (see below), whose sum is σ = 413440. Its totient is φ = 174960.

The previous prime is 270719. The next prime is 270737. The reversal of 270729 is 927072.

270729 = T₁₀₂ + T₁₀₃ + ... + T₁₃₈.

It is not a de Polignac number, because 270729 - 2⁷ = 270601 is a prime.

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

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

270729 is a modest number, since divided by 729 gives 270 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 864 + ... + 1134.

It is an arithmetic number, because the mean of its divisors is an integer number (25840).

2²⁷⁰⁷²⁹ is an apocalyptic number.

It is an amenable number.

270729 is a deficient number, since it is larger than the sum of its proper divisors (142711).

270729 is a wasteful number, since it uses less digits than its factorization.

270729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 270729 is about 520.3162499865. The cubic root of 270729 is about 64.6911581632.

It can be divided in two parts, 270 and 729, that added together give a palindrome (999).

The spelling of 270729 in words is "two hundred seventy thousand, seven hundred twenty-nine".