8121801 has 16 divisors (see below), whose sum is σ = 11548224. Its totient is φ = 5059584.

The previous prime is 8121793. The next prime is 8121811. The reversal of 8121801 is 1081218.

It is not a de Polignac number, because 8121801 - 2³ = 8121793 is a prime.

It is a Curzon number.

8121801 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8121811) 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, 7825 + ... + 8801.

It is an arithmetic number, because the mean of its divisors is an integer number (721764).

Almost surely, 2^8121801 is an apocalyptic number.

It is an amenable number.

8121801 is a deficient number, since it is larger than the sum of its proper divisors (3426423).

8121801 is a wasteful number, since it uses less digits than its factorization.

8121801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 8121801 is about 2849.8773657826. The cubic root of 8121801 is about 201.0099002574.

The spelling of 8121801 in words is "eight million, one hundred twenty-one thousand, eight hundred one".