730320651 has 16 divisors (see below), whose sum is σ = 1138902400. Its totient is φ = 461254824.

The previous prime is 730320637. The next prime is 730320737. The reversal of 730320651 is 156023037.

It is a happy number.

730320651 is a `hidden beast` number, since 7 + 3 + 0 + 3 + 2 + 0 + 651 = 666.

It is not a de Polignac number, because 730320651 - 2⁷ = 730320523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730320631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711301 + ... + 712326.

It is an arithmetic number, because the mean of its divisors is an integer number (71181400).

Almost surely, 2^730320651 is an apocalyptic number.

730320651 is a deficient number, since it is larger than the sum of its proper divisors (408581749).

730320651 is a wasteful number, since it uses less digits than its factorization.

730320651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423655 (or 1423649 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 730320651 is about 27024.4454337180. The cubic root of 730320651 is about 900.5431499209.

Adding to 730320651 its reverse (156023037), we get a palindrome (886343688).

The spelling of 730320651 in words is "seven hundred thirty million, three hundred twenty thousand, six hundred fifty-one".