729650 has 12 divisors (see below), whose sum is σ = 1357242. Its totient is φ = 291840.

The previous prime is 729649. The next prime is 729661. The reversal of 729650 is 56927.

It can be written as a sum of positive squares in 3 ways, for example, as 368449 + 361201 = 607^2 + 601^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7247 + ... + 7346.

2⁷²⁹⁶⁵⁰ is an apocalyptic number.

729650 is a deficient number, since it is larger than the sum of its proper divisors (627592).

729650 is a wasteful number, since it uses less digits than its factorization.

729650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14605 (or 14600 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 729650 is about 854.1955279677. The cubic root of 729650 is about 90.0267410250.

The spelling of 729650 in words is "seven hundred twenty-nine thousand, six hundred fifty".