729125079 has 4 divisors (see below), whose sum is σ = 972166776. Its totient is φ = 486083384.

The previous prime is 729125069. The next prime is 729125083. The reversal of 729125079 is 970521927.

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 729125079 - 2²¹ = 727027927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 729125079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729125029) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 121520844 + ... + 121520849.

It is an arithmetic number, because the mean of its divisors is an integer number (243041694).

Almost surely, 2^729125079 is an apocalyptic number.

729125079 is a deficient number, since it is larger than the sum of its proper divisors (243041697).

729125079 is a wasteful number, since it uses less digits than its factorization.

729125079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243041696.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 729125079 is about 27002.3161784318. The cubic root of 729125079 is about 900.0514698959.

The spelling of 729125079 in words is "seven hundred twenty-nine million, one hundred twenty-five thousand, seventy-nine".