9806404 has 6 divisors (see below), whose sum is σ = 17161214. Its totient is φ = 4903200.

The previous prime is 9806389. The next prime is 9806429. The reversal of 9806404 is 4046089.

It can be written as a sum of positive squares in only one way, i.e., 9000000 + 806404 = 3000^2 + 898^2 .

It is a super-2 number, since 2×9806404² = 192331118822432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1225797 + ... + 1225804.

Almost surely, 2^9806404 is an apocalyptic number.

It is an amenable number.

9806404 is a deficient number, since it is larger than the sum of its proper divisors (7354810).

9806404 is a wasteful number, since it uses less digits than its factorization.

9806404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451605 (or 2451603 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 9806404 is about 3131.5178428360. The cubic root of 9806404 is about 214.0440995674.

It can be divided in two parts, 9 and 806404, that multiplied together give a square (7257636 = 2694²).

The spelling of 9806404 in words is "nine million, eight hundred six thousand, four hundred four".