9479540 has 72 divisors (see below), whose sum is σ = 24562440. Its totient is φ = 3053568.

The previous prime is 9479539. The next prime is 9479563. The reversal of 9479540 is 459749.

It can be written as a sum of positive squares in 4 ways, for example, as 753424 + 8726116 = 868^2 + 2954^2 .

It is a super-2 number, since 2×9479540² = 179723357223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9479494 and 9479503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16376 + ... + 16944.

It is an arithmetic number, because the mean of its divisors is an integer number (341145).

Almost surely, 2^9479540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9479540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12281220).

9479540 is an abundant number, since it is smaller than the sum of its proper divisors (15082900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9479540 is a wasteful number, since it uses less digits than its factorization.

9479540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 9479540 is about 3078.8861622346. The cubic root of 9479540 is about 211.6390261577.

The spelling of 9479540 in words is "nine million, four hundred seventy-nine thousand, five hundred forty".