729869958 has 12 divisors (see below), whose sum is σ = 1581384948. Its totient is φ = 243289980.

The previous prime is 729869953. The next prime is 729870013. The reversal of 729869958 is 859968927.

It is a junction number, because it is equal to n+sod(n) for n = 729869895 and 729869904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729869951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20274148 + ... + 20274183.

It is an arithmetic number, because the mean of its divisors is an integer number (131782079).

Almost surely, 2^729869958 is an apocalyptic number.

729869958 is an abundant number, since it is smaller than the sum of its proper divisors (851514990).

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

729869958 is a wasteful number, since it uses less digits than its factorization.

729869958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40548339 (or 40548336 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The square root of 729869958 is about 27016.1055298502. The cubic root of 729869958 is about 900.3578650914.

It can be divided in two parts, 72986 and 9958, that added together give a square (82944 = 288²).

The spelling of 729869958 in words is "seven hundred twenty-nine million, eight hundred sixty-nine thousand, nine hundred fifty-eight".