730423989 has 24 divisors (see below), whose sum is σ = 1120571712. Its totient is φ = 456888960.

The previous prime is 730423951. The next prime is 730424047. The reversal of 730423989 is 989324037.

It is a happy number.

730423989 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 730423989 - 2¹³ = 730415797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730423909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43432 + ... + 57854.

It is an arithmetic number, because the mean of its divisors is an integer number (46690488).

Almost surely, 2^730423989 is an apocalyptic number.

It is an amenable number.

730423989 is a deficient number, since it is larger than the sum of its proper divisors (390147723).

730423989 is a wasteful number, since it uses less digits than its factorization.

730423989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14777 (or 14774 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 730423989 is about 27026.3573017157. The cubic root of 730423989 is about 900.5856225613.

The spelling of 730423989 in words is "seven hundred thirty million, four hundred twenty-three thousand, nine hundred eighty-nine".