8423661 has 16 divisors (see below), whose sum is σ = 11819520. Its totient is φ = 5328960.

The previous prime is 8423651. The next prime is 8423663. The reversal of 8423661 is 1663248.

It is not a de Polignac number, because 8423661 - 2¹³ = 8415469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4075 + ... + 5783.

It is an arithmetic number, because the mean of its divisors is an integer number (738720).

Almost surely, 2^8423661 is an apocalyptic number.

It is an amenable number.

8423661 is a deficient number, since it is larger than the sum of its proper divisors (3395859).

8423661 is a wasteful number, since it uses less digits than its factorization.

8423661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796.

The product of its digits is 6912, while the sum is 30.

The square root of 8423661 is about 2902.3543891124. The cubic root of 8423661 is about 203.4699571504.

The spelling of 8423661 in words is "eight million, four hundred twenty-three thousand, six hundred sixty-one".