730205839 has 12 divisors (see below), whose sum is σ = 807285528. Its totient is φ = 659967440.

The previous prime is 730205809. The next prime is 730205849. The reversal of 730205839 is 938502037.

730205839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 730205839 - 2⁷ = 730205711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 730205798 and 730205807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730205809) 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, 3492 + ... + 38374.

It is an arithmetic number, because the mean of its divisors is an integer number (67273794).

Almost surely, 2^730205839 is an apocalyptic number.

730205839 is a deficient number, since it is larger than the sum of its proper divisors (77079689).

730205839 is a wasteful number, since it uses less digits than its factorization.

730205839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35078 (or 35067 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 730205839 is about 27022.3211253216. The cubic root of 730205839 is about 900.4959566876.

The spelling of 730205839 in words is "seven hundred thirty million, two hundred five thousand, eight hundred thirty-nine".