9409285 has 16 divisors (see below), whose sum is σ = 11701872. Its totient is φ = 7257600.

The previous prime is 9409273. The next prime is 9409307. The reversal of 9409285 is 5829049.

9409285 = T₃₅₅ + T₃₅₆ + ... + T₄₆₅.

It can be written as a sum of positive squares in 8 ways, for example, as 82369 + 9326916 = 287^2 + 3054^2 .

It is not a de Polignac number, because 9409285 - 2²¹ = 7312133 is a prime.

It is a super-2 number, since 2×9409285² = 177069288422450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33345 + ... + 33625.

It is an arithmetic number, because the mean of its divisors is an integer number (731367).

Almost surely, 2^9409285 is an apocalyptic number.

It is an amenable number.

9409285 is a deficient number, since it is larger than the sum of its proper divisors (2292587).

9409285 is a wasteful number, since it uses less digits than its factorization.

9409285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 9409285 is about 3067.4557861524. The cubic root of 9409285 is about 211.1148944126.

The spelling of 9409285 in words is "nine million, four hundred nine thousand, two hundred eighty-five".