729945607 has 4 divisors (see below), whose sum is σ = 730347840. Its totient is φ = 729543376.

The previous prime is 729945599. The next prime is 729945617. The reversal of 729945607 is 706549927.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 729945607 - 2³ = 729945599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729945617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198382 + ... + 202027.

It is an arithmetic number, because the mean of its divisors is an integer number (182586960).

Almost surely, 2^729945607 is an apocalyptic number.

729945607 is a deficient number, since it is larger than the sum of its proper divisors (402233).

729945607 is a wasteful number, since it uses less digits than its factorization.

729945607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402232.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 729945607 is about 27017.5055658364. The cubic root of 729945607 is about 900.3889705499.

The spelling of 729945607 in words is "seven hundred twenty-nine million, nine hundred forty-five thousand, six hundred seven".