2991201 has 16 divisors (see below), whose sum is σ = 4276800. Its totient is φ = 1852928.

The previous prime is 2991199. The next prime is 2991203. The reversal of 2991201 is 1021992.

It is an interprime number because it is at equal distance from previous prime (2991199) and next prime (2991203).

It is a cyclic number.

It is not a de Polignac number, because 2991201 - 2¹ = 2991199 is a prime.

2991201 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2991203) 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, 4210 + ... + 4868.

It is an arithmetic number, because the mean of its divisors is an integer number (267300).

2^2991201 is an apocalyptic number.

It is an amenable number.

2991201 is a deficient number, since it is larger than the sum of its proper divisors (1285599).

2991201 is a wasteful number, since it uses less digits than its factorization.

2991201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 2991201 is about 1729.5088898297. The cubic root of 2991201 is about 144.0838150178.

The spelling of 2991201 in words is "two million, nine hundred ninety-one thousand, two hundred one".