728020966 has 4 divisors (see below), whose sum is σ = 1092031452. Its totient is φ = 364010482.

The previous prime is 728020963. The next prime is 728021009. The reversal of 728020966 is 669020827.

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 (728020961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182005240 + ... + 182005243.

It is an arithmetic number, because the mean of its divisors is an integer number (273007863).

Almost surely, 2^728020966 is an apocalyptic number.

728020966 is a deficient number, since it is larger than the sum of its proper divisors (364010486).

728020966 is a wasteful number, since it uses less digits than its factorization.

728020966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364010485.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 728020966 is about 26981.8636494961. The cubic root of 728020966 is about 899.5969248550.

The spelling of 728020966 in words is "seven hundred twenty-eight million, twenty thousand, nine hundred sixty-six".