9475821 has 12 divisors (see below), whose sum is σ = 13714272. Its totient is φ = 6304776.

The previous prime is 9475819. The next prime is 9475831. The reversal of 9475821 is 1285749.

9475821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9475821 - 2¹ = 9475819 is a prime.

It is a Curzon number.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9475831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7390 + ... + 8576.

It is an arithmetic number, because the mean of its divisors is an integer number (1142856).

Almost surely, 2^9475821 is an apocalyptic number.

It is an amenable number.

9475821 is a deficient number, since it is larger than the sum of its proper divisors (4238451).

9475821 is a wasteful number, since it uses less digits than its factorization.

9475821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080 (or 2077 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 9475821 is about 3078.2821508107. The cubic root of 9475821 is about 211.6113458943.

It can be divided in two parts, 9475 and 821, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 9475821 in words is "nine million, four hundred seventy-five thousand, eight hundred twenty-one".