729459906 has 16 divisors (see below), whose sum is σ = 1667337024. Its totient is φ = 208417104.

The previous prime is 729459877. The next prime is 729459911. The reversal of 729459906 is 609954927.

It is a super-2 number, since 2×729459906² = 1064223508923057672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8684005 + ... + 8684088.

It is an arithmetic number, because the mean of its divisors is an integer number (104208564).

Almost surely, 2^729459906 is an apocalyptic number.

729459906 is an abundant number, since it is smaller than the sum of its proper divisors (937877118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729459906 is a wasteful number, since it uses less digits than its factorization.

729459906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17368105.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The square root of 729459906 is about 27008.5154349513. The cubic root of 729459906 is about 900.1892219423.

The spelling of 729459906 in words is "seven hundred twenty-nine million, four hundred fifty-nine thousand, nine hundred six".