8661650 has 24 divisors (see below), whose sum is σ = 16271280. Its totient is φ = 3430160.

The previous prime is 8661643. The next prime is 8661673. The reversal of 8661650 is 561668.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4541 + ... + 6159.

It is an arithmetic number, because the mean of its divisors is an integer number (677970).

Almost surely, 2^8661650 is an apocalyptic number.

8661650 is a deficient number, since it is larger than the sum of its proper divisors (7609630).

8661650 is a wasteful number, since it uses less digits than its factorization.

8661650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738 (or 1733 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 8661650 is about 2943.0681269723. The cubic root of 8661650 is about 205.3683640641.

The spelling of 8661650 in words is "eight million, six hundred sixty-one thousand, six hundred fifty".