729993 has 12 divisors (see below), whose sum is σ = 1070384. Its totient is φ = 442200.

The previous prime is 729991. The next prime is 730003. The reversal of 729993 is 399927.

It is not a de Polignac number, because 729993 - 2¹ = 729991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729991) 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, 643 + ... + 1368.

2⁷²⁹⁹⁹³ is an apocalyptic number.

It is an amenable number.

729993 is a deficient number, since it is larger than the sum of its proper divisors (340391).

729993 is a wasteful number, since it uses less digits than its factorization.

729993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036 (or 2025 counting only the distinct ones).

The product of its digits is 30618, while the sum is 39.

The square root of 729993 is about 854.3962780818. The cubic root of 729993 is about 90.0408456573.

The spelling of 729993 in words is "seven hundred twenty-nine thousand, nine hundred ninety-three".