8201656 has 16 divisors (see below), whose sum is σ = 15435000. Its totient is φ = 4085664.

The previous prime is 8201647. The next prime is 8201663. The reversal of 8201656 is 6561028.

It is a super-2 number, since 2×8201656² = 134534322284672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595 + ... + 4093.

Almost surely, 2^8201656 is an apocalyptic number.

It is an amenable number.

8201656 is a deficient number, since it is larger than the sum of its proper divisors (7233344).

8201656 is a wasteful number, since it uses less digits than its factorization.

8201656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798 (or 3794 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 8201656 is about 2863.8533482006. The cubic root of 8201656 is about 201.6665412957. Note that the first 3 decimals are identical.

The spelling of 8201656 in words is "eight million, two hundred one thousand, six hundred fifty-six".