9450991 has 4 divisors (see below), whose sum is σ = 10310184. Its totient is φ = 8591800.

The previous prime is 9450977. The next prime is 9451003. The reversal of 9450991 is 1990549.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1990549 = 11 ⋅180959.

It is a cyclic number.

It is not a de Polignac number, because 9450991 - 2¹³ = 9442799 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 9450991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9450911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429580 + ... + 429601.

It is an arithmetic number, because the mean of its divisors is an integer number (2577546).

Almost surely, 2^9450991 is an apocalyptic number.

9450991 is a deficient number, since it is larger than the sum of its proper divisors (859193).

9450991 is a wasteful number, since it uses less digits than its factorization.

9450991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859192.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 9450991 is about 3074.2464117243. The cubic root of 9450991 is about 211.4263520455.

The spelling of 9450991 in words is "nine million, four hundred fifty thousand, nine hundred ninety-one".