9958747 has 4 divisors (see below), whose sum is σ = 10391760. Its totient is φ = 9525736.

The previous prime is 9958723. The next prime is 9958759. The reversal of 9958747 is 7478599.

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: 7478599 = 109 ⋅68611.

It is a cyclic number.

It is not a de Polignac number, because 9958747 - 2¹¹ = 9956699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9958747.

It is not an unprimeable number, because it can be changed into a prime (9958847) 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, 216472 + ... + 216517.

It is an arithmetic number, because the mean of its divisors is an integer number (2597940).

Almost surely, 2^9958747 is an apocalyptic number.

9958747 is a deficient number, since it is larger than the sum of its proper divisors (433013).

9958747 is a wasteful number, since it uses less digits than its factorization.

9958747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433012.

The product of its digits is 635040, while the sum is 49.

The square root of 9958747 is about 3155.7482472466. The cubic root of 9958747 is about 215.1468043707.

The spelling of 9958747 in words is "nine million, nine hundred fifty-eight thousand, seven hundred forty-seven".