730261 has 4 divisors (see below), whose sum is σ = 834592. Its totient is φ = 625932.

The previous prime is 730253. The next prime is 730277. The reversal of 730261 is 162037.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 162037 = 31 ⋅5227.

It is a cyclic number.

It is not a de Polignac number, because 730261 - 2³ = 730253 is a prime.

It is a super-2 number, since 2×730261² = 1066562256242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731261) 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, 52155 + ... + 52168.

It is an arithmetic number, because the mean of its divisors is an integer number (208648).

2⁷³⁰²⁶¹ is an apocalyptic number.

It is an amenable number.

730261 is a deficient number, since it is larger than the sum of its proper divisors (104331).

730261 is a wasteful number, since it uses less digits than its factorization.

730261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104330.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 730261 is about 854.5530995790. The cubic root of 730261 is about 90.0518631119.

Adding to 730261 its reverse (162037), we get a palindrome (892298).

The spelling of 730261 in words is "seven hundred thirty thousand, two hundred sixty-one".