730415643 has 8 divisors (see below), whose sum is σ = 974637888. Its totient is φ = 486568584.

The previous prime is 730415639. The next prime is 730415657. The reversal of 730415643 is 346514037.

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

It is not a de Polignac number, because 730415643 - 2² = 730415639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730415633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89221 + ... + 97062.

It is an arithmetic number, because the mean of its divisors is an integer number (121829736).

Almost surely, 2^730415643 is an apocalyptic number.

730415643 is a deficient number, since it is larger than the sum of its proper divisors (244222245).

730415643 is a wasteful number, since it uses less digits than its factorization.

730415643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187593.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 730415643 is about 27026.2028964485. The cubic root of 730415643 is about 900.5821924457.

The spelling of 730415643 in words is "seven hundred thirty million, four hundred fifteen thousand, six hundred forty-three".