729216650 has 12 divisors (see below), whose sum is σ = 1356343062. Its totient is φ = 291686640.

The previous prime is 729216617. The next prime is 729216673. The reversal of 729216650 is 56612927.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 386633569 + 342583081 = 19663^2 + 18509^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 7292117 + ... + 7292216.

Almost surely, 2^729216650 is an apocalyptic number.

729216650 is a deficient number, since it is larger than the sum of its proper divisors (627126412).

729216650 is a wasteful number, since it uses less digits than its factorization.

729216650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14584345 (or 14584340 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 729216650 is about 27004.0117389991. The cubic root of 729216650 is about 900.0891475480.

The spelling of 729216650 in words is "seven hundred twenty-nine million, two hundred sixteen thousand, six hundred fifty".