729130078 has 4 divisors (see below), whose sum is σ = 1093695120. Its totient is φ = 364565038.

The previous prime is 729130037. The next prime is 729130079. The reversal of 729130078 is 870031927.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729130079) 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 as a sum of consecutive naturals, namely, 182282518 + ... + 182282521.

It is an arithmetic number, because the mean of its divisors is an integer number (273423780).

Almost surely, 2^729130078 is an apocalyptic number.

729130078 is a deficient number, since it is larger than the sum of its proper divisors (364565042).

729130078 is a wasteful number, since it uses less digits than its factorization.

729130078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364565041.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 729130078 is about 27002.4087444065. The cubic root of 729130078 is about 900.0535268576.

The spelling of 729130078 in words is "seven hundred twenty-nine million, one hundred thirty thousand, seventy-eight".