9805072 has 10 divisors (see below), whose sum is σ = 18997358. Its totient is φ = 4902528.

The previous prime is 9805069. The next prime is 9805091. The reversal of 9805072 is 2705089.

It can be written as a sum of positive squares in only one way, i.e., 5740816 + 4064256 = 2396^2 + 2016^2 .

It is a super-2 number, since 2×9805072² = 192278873850368, 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, 306393 + ... + 306424.

Almost surely, 2^9805072 is an apocalyptic number.

It is an amenable number.

9805072 is a deficient number, since it is larger than the sum of its proper divisors (9192286).

9805072 is a wasteful number, since it uses less digits than its factorization.

9805072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612825 (or 612819 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 9805072 is about 3131.3051591948. The cubic root of 9805072 is about 214.0344079533.

The spelling of 9805072 in words is "nine million, eight hundred five thousand, seventy-two".