729189955 has 16 divisors (see below), whose sum is σ = 946026144. Its totient is φ = 536371200.

The previous prime is 729189947. The next prime is 729189997. The reversal of 729189955 is 559981927.

It is not a de Polignac number, because 729189955 - 2³ = 729189947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 729189896 and 729189905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5121 + ... + 38530.

It is an arithmetic number, because the mean of its divisors is an integer number (59126634).

Almost surely, 2^729189955 is an apocalyptic number.

729189955 is a deficient number, since it is larger than the sum of its proper divisors (216836189).

729189955 is a wasteful number, since it uses less digits than its factorization.

729189955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43926.

The product of its digits is 2041200, while the sum is 55.

The square root of 729189955 is about 27003.5174560649. The cubic root of 729189955 is about 900.0781639932.

The spelling of 729189955 in words is "seven hundred twenty-nine million, one hundred eighty-nine thousand, nine hundred fifty-five".