9478491 has 16 divisors (see below), whose sum is σ = 13843200. Its totient is φ = 5721120.

The previous prime is 9478487. The next prime is 9478541. The reversal of 9478491 is 1948749.

9478491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9478491 - 2² = 9478487 is a prime.

9478491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9478991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11106 + ... + 11928.

It is an arithmetic number, because the mean of its divisors is an integer number (865200).

Almost surely, 2^9478491 is an apocalyptic number.

9478491 is the 1646-th nonagonal number.

9478491 is a deficient number, since it is larger than the sum of its proper divisors (4364709).

9478491 is a wasteful number, since it uses less digits than its factorization.

9478491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186.

The product of its digits is 72576, while the sum is 42.

The square root of 9478491 is about 3078.7158037078. The cubic root of 9478491 is about 211.6312192554.

The spelling of 9478491 in words is "nine million, four hundred seventy-eight thousand, four hundred ninety-one".