9730405 has 4 divisors (see below), whose sum is σ = 11676492. Its totient is φ = 7784320.

The previous prime is 9730393. The next prime is 9730423. The reversal of 9730405 is 5040379.

9730405 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.

It can be written as a sum of positive squares in 2 ways, for example, as 6723649 + 3006756 = 2593^2 + 1734^2 .

It is not a de Polignac number, because 9730405 - 2¹⁷ = 9599333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973036 + ... + 973045.

It is an arithmetic number, because the mean of its divisors is an integer number (2919123).

Almost surely, 2^9730405 is an apocalyptic number.

It is an amenable number.

9730405 is a deficient number, since it is larger than the sum of its proper divisors (1946087).

9730405 is a wasteful number, since it uses less digits than its factorization.

9730405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946086.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 9730405 is about 3119.3597099405. The cubic root of 9730405 is about 213.4897222957.

The spelling of 9730405 in words is "nine million, seven hundred thirty thousand, four hundred five".