728379607 has 4 divisors (see below), whose sum is σ = 728451360. Its totient is φ = 728307856.

The previous prime is 728379593. The next prime is 728379647. The reversal of 728379607 is 706973827.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 728379607 - 2²⁷ = 594161879 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 (728379647) 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, 17518 + ... + 41995.

It is an arithmetic number, because the mean of its divisors is an integer number (182112840).

Almost surely, 2^728379607 is an apocalyptic number.

728379607 is a deficient number, since it is larger than the sum of its proper divisors (71753).

728379607 is a wasteful number, since it uses less digits than its factorization.

728379607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71752.

The product of its (nonzero) digits is 889056, while the sum is 49.

The square root of 728379607 is about 26988.5087954114. The cubic root of 728379607 is about 899.7446217811.

The spelling of 728379607 in words is "seven hundred twenty-eight million, three hundred seventy-nine thousand, six hundred seven".