730663643 has 4 divisors (see below), whose sum is σ = 740672808. Its totient is φ = 720654480.

The previous prime is 730663579. The next prime is 730663649. The reversal of 730663643 is 346366037.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 730663643 - 2⁶ = 730663579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 730663597 and 730663606.

It is not an unprimeable number, because it can be changed into a prime (730663649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5004473 + ... + 5004618.

It is an arithmetic number, because the mean of its divisors is an integer number (185168202).

Almost surely, 2^730663643 is an apocalyptic number.

730663643 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

730663643 is a deficient number, since it is larger than the sum of its proper divisors (10009165).

730663643 is a wasteful number, since it uses less digits than its factorization.

730663643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10009164.

The product of its (nonzero) digits is 163296, while the sum is 38.

The square root of 730663643 is about 27030.7906469641. The cubic root of 730663643 is about 900.6841066151.

The spelling of 730663643 in words is "seven hundred thirty million, six hundred sixty-three thousand, six hundred forty-three".