729477 has 12 divisors (see below), whose sum is σ = 1204320. Its totient is φ = 416808.

The previous prime is 729473. The next prime is 729493. The reversal of 729477 is 774927.

It is not a de Polignac number, because 729477 - 2² = 729473 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 729477.

It is not an unprimeable number, because it can be changed into a prime (729473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5727 + ... + 5852.

It is an arithmetic number, because the mean of its divisors is an integer number (100360).

2⁷²⁹⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

729477 is a deficient number, since it is larger than the sum of its proper divisors (474843).

729477 is a wasteful number, since it uses less digits than its factorization.

729477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11592 (or 11589 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 729477 is about 854.0942570934. The cubic root of 729477 is about 90.0196253498.

The spelling of 729477 in words is "seven hundred twenty-nine thousand, four hundred seventy-seven".