2986221 has 16 divisors (see below), whose sum is σ = 4657664. Its totient is φ = 1666224.

The previous prime is 2986201. The next prime is 2986223. The reversal of 2986221 is 1226892.

It is not a de Polignac number, because 2986221 - 2²¹ = 889069 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2986223) 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, 751 + ... + 2556.

It is an arithmetic number, because the mean of its divisors is an integer number (291104).

2^2986221 is an apocalyptic number.

2986221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2986221 is a deficient number, since it is larger than the sum of its proper divisors (1671443).

2986221 is a wasteful number, since it uses less digits than its factorization.

2986221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360.

The product of its digits is 3456, while the sum is 30.

The square root of 2986221 is about 1728.0685750282. The cubic root of 2986221 is about 144.0038096986.

The spelling of 2986221 in words is "two million, nine hundred eighty-six thousand, two hundred twenty-one".