8991201 has 4 divisors (see below), whose sum is σ = 11988272. Its totient is φ = 5994132.

The previous prime is 8991197. The next prime is 8991223. The reversal of 8991201 is 1021998.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8991201 - 2² = 8991197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8991251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498531 + ... + 1498536.

It is an arithmetic number, because the mean of its divisors is an integer number (2997068).

Almost surely, 2^8991201 is an apocalyptic number.

It is an amenable number.

8991201 is a deficient number, since it is larger than the sum of its proper divisors (2997071).

8991201 is a wasteful number, since it uses less digits than its factorization.

8991201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997070.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 8991201 is about 2998.5331413876. The cubic root of 8991201 is about 207.9405725814.

The spelling of 8991201 in words is "eight million, nine hundred ninety-one thousand, two hundred one".