730651 has 4 divisors (see below), whose sum is σ = 733752. Its totient is φ = 727552.

The previous prime is 730637. The next prime is 730663. The reversal of 730651 is 156037.

730651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156037 = 7 ⋅22291.

It is a cyclic number.

It is not a de Polignac number, because 730651 - 2⁵ = 730619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730451) 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, 1165 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (183438).

2⁷³⁰⁶⁵¹ is an apocalyptic number.

730651 is a deficient number, since it is larger than the sum of its proper divisors (3101).

730651 is a wasteful number, since it uses less digits than its factorization.

730651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 730651 is about 854.7812585685. The cubic root of 730651 is about 90.0678911605.

Adding to 730651 its reverse (156037), we get a palindrome (886688).

The spelling of 730651 in words is "seven hundred thirty thousand, six hundred fifty-one".