728232605 has 8 divisors (see below), whose sum is σ = 880760832. Its totient is φ = 577998288.

The previous prime is 728232569. The next prime is 728232607. The reversal of 728232605 is 506232827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 728232605 - 2⁶ = 728232541 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 (728232607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572777 + ... + 574046.

It is an arithmetic number, because the mean of its divisors is an integer number (110095104).

Almost surely, 2^728232605 is an apocalyptic number.

It is an amenable number.

728232605 is a deficient number, since it is larger than the sum of its proper divisors (152528227).

728232605 is a wasteful number, since it uses less digits than its factorization.

728232605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146955.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 728232605 is about 26985.7852396405. The cubic root of 728232605 is about 899.6840887126.

The spelling of 728232605 in words is "seven hundred twenty-eight million, two hundred thirty-two thousand, six hundred five".