730728669 has 8 divisors (see below), whose sum is σ = 1062878112. Its totient is φ = 442865840.

The previous prime is 730728667. The next prime is 730728671. The reversal of 730728669 is 966827037.

730728669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (730728667) and next prime (730728671).

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 730728669 - 2¹ = 730728667 is a prime.

It is a super-2 number, since 2×730728669² = 1067928775397023122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730728667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11071614 + ... + 11071679.

It is an arithmetic number, because the mean of its divisors is an integer number (132859764).

Almost surely, 2^730728669 is an apocalyptic number.

It is an amenable number.

730728669 is a deficient number, since it is larger than the sum of its proper divisors (332149443).

730728669 is a wasteful number, since it uses less digits than its factorization.

730728669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22143307.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 730728669 is about 27031.9934337074. The cubic root of 730728669 is about 900.7108248586.

The spelling of 730728669 in words is "seven hundred thirty million, seven hundred twenty-eight thousand, six hundred sixty-nine".