730955381 has 4 divisors (see below), whose sum is σ = 787182732. Its totient is φ = 674728032.

The previous prime is 730955363. The next prime is 730955389. The reversal of 730955381 is 183559037.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 183559037 = 1747 ⋅105071.

It can be written as a sum of positive squares in 2 ways, for example, as 354983281 + 375972100 = 18841^2 + 19390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730955381 is a prime.

It is a super-2 number, since 2×730955381² = 1068591538025710322, 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 (730955389) 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, 28113656 + ... + 28113681.

It is an arithmetic number, because the mean of its divisors is an integer number (196795683).

Almost surely, 2^730955381 is an apocalyptic number.

It is an amenable number.

730955381 is a deficient number, since it is larger than the sum of its proper divisors (56227351).

730955381 is a wasteful number, since it uses less digits than its factorization.

730955381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56227350.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 730955381 is about 27036.1865099352. The cubic root of 730955381 is about 900.8039651475.

The spelling of 730955381 in words is "seven hundred thirty million, nine hundred fifty-five thousand, three hundred eighty-one".