728344611 has 12 divisors (see below), whose sum is σ = 1097795088. Its totient is φ = 464451504.

The previous prime is 728344607. The next prime is 728344627. The reversal of 728344611 is 116443827.

728344611 is a `hidden beast` number, since 7 + 2 + 8 + 34 + 4 + 611 = 666.

It is not a de Polignac number, because 728344611 - 2² = 728344607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728344601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1759080 + ... + 1759493.

It is an arithmetic number, because the mean of its divisors is an integer number (91482924).

Almost surely, 2^728344611 is an apocalyptic number.

728344611 is a deficient number, since it is larger than the sum of its proper divisors (369450477).

728344611 is a wasteful number, since it uses less digits than its factorization.

728344611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518602 (or 3518599 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 728344611 is about 26987.8604376116. The cubic root of 728344611 is about 899.7302117277.

The spelling of 728344611 in words is "seven hundred twenty-eight million, three hundred forty-four thousand, six hundred eleven".