9478749 has 32 divisors (see below), whose sum is σ = 15079680. Its totient is φ = 5184000.

The previous prime is 9478727. The next prime is 9478751.

It is a happy number.

9478749 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9478749 - 2⁵ = 9478717 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 9478698 and 9478707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9478769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86907 + ... + 87015.

It is an arithmetic number, because the mean of its divisors is an integer number (471240).

Almost surely, 2^9478749 is an apocalyptic number.

It is an amenable number.

9478749 is a deficient number, since it is larger than the sum of its proper divisors (5600931).

9478749 is a wasteful number, since it uses less digits than its factorization.

9478749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261.

The product of its digits is 508032, while the sum is 48.

The square root of 9478749 is about 3078.7577040098. The cubic root of 9478749 is about 211.6331394049.

The spelling of 9478749 in words is "nine million, four hundred seventy-eight thousand, seven hundred forty-nine".