8408181 has 8 divisors (see below), whose sum is σ = 11230560. Its totient is φ = 5595632.

The previous prime is 8408143. The next prime is 8408189. The reversal of 8408181 is 1818048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8408181 - 2⁶ = 8408117 is a prime.

It is a super-2 number, since 2×8408181² = 141395015457522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8408189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150 + ... + 4103.

It is an arithmetic number, because the mean of its divisors is an integer number (1403820).

Almost surely, 2^8408181 is an apocalyptic number.

It is an amenable number.

8408181 is a deficient number, since it is larger than the sum of its proper divisors (2822379).

8408181 is a wasteful number, since it uses less digits than its factorization.

8408181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915.

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 8408181 is about 2899.6863623502. The cubic root of 8408181 is about 203.3452431138.

The spelling of 8408181 in words is "eight million, four hundred eight thousand, one hundred eighty-one".