9459991 has 8 divisors (see below), whose sum is σ = 9802368. Its totient is φ = 9120000.

The previous prime is 9459959. The next prime is 9460027. The reversal of 9459991 is 1999549.

9459991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9459991 - 2⁵ = 9459959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9459911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12051 + ... + 12811.

It is an arithmetic number, because the mean of its divisors is an integer number (1225296).

Almost surely, 2^9459991 is an apocalyptic number.

9459991 is a deficient number, since it is larger than the sum of its proper divisors (342377).

9459991 is a wasteful number, since it uses less digits than its factorization.

9459991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193.

The product of its digits is 131220, while the sum is 46.

The square root of 9459991 is about 3075.7098367694. The cubic root of 9459991 is about 211.4934431923.

It can be divided in two parts, 945999 and 1, that added together give a triangular number (946000 = T₁₃₇₅).

The spelling of 9459991 in words is "nine million, four hundred fifty-nine thousand, nine hundred ninety-one".