729400986 has 24 divisors (see below), whose sum is σ = 1580915700. Its totient is φ = 243049536.

The previous prime is 729400961. The next prime is 729401003. The reversal of 729400986 is 689004927.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 674181225 + 55219761 = 25965^2 + 7431^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68340 + ... + 78288.

Almost surely, 2^729400986 is an apocalyptic number.

729400986 is an abundant number, since it is smaller than the sum of its proper divisors (851514714).

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

729400986 is a wasteful number, since it uses less digits than its factorization.

729400986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14030 (or 14027 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 729400986 is about 27007.4246458266. The cubic root of 729400986 is about 900.1649845686.

The spelling of 729400986 in words is "seven hundred twenty-nine million, four hundred thousand, nine hundred eighty-six".