730550643 has 8 divisors (see below), whose sum is σ = 974297808. Its totient is φ = 486918624.

The previous prime is 730550621. The next prime is 730550729. The reversal of 730550643 is 346055037.

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

It is not a de Polignac number, because 730550643 - 2⁹ = 730550131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730550543) 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, 12696 + ... + 40277.

It is an arithmetic number, because the mean of its divisors is an integer number (121787226).

Almost surely, 2^730550643 is an apocalyptic number.

730550643 is a deficient number, since it is larger than the sum of its proper divisors (243747165).

730550643 is a wasteful number, since it uses less digits than its factorization.

730550643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57573.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 730550643 is about 27028.7003572129. The cubic root of 730550643 is about 900.6376727774.

The spelling of 730550643 in words is "seven hundred thirty million, five hundred fifty thousand, six hundred forty-three".