730834387 has 4 divisors (see below), whose sum is σ = 731104920. Its totient is φ = 730563856.

The previous prime is 730834381. The next prime is 730834477. The reversal of 730834387 is 783438037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783438037 = 37 ⋅21174001.

It is a cyclic number.

It is not a de Polignac number, because 730834387 - 2²⁷ = 596616659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730834381) 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, 131173 + ... + 136630.

It is an arithmetic number, because the mean of its divisors is an integer number (182776230).

Almost surely, 2^730834387 is an apocalyptic number.

730834387 is a deficient number, since it is larger than the sum of its proper divisors (270533).

730834387 is a wasteful number, since it uses less digits than its factorization.

730834387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270532.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 730834387 is about 27033.9487866645. The cubic root of 730834387 is about 900.7542594737.

The spelling of 730834387 in words is "seven hundred thirty million, eight hundred thirty-four thousand, three hundred eighty-seven".