2956221 has 12 divisors (see below), whose sum is σ = 4291872. Its totient is φ = 1960776.

The previous prime is 2956201. The next prime is 2956237. The reversal of 2956221 is 1226592.

It is not a de Polignac number, because 2956221 - 2⁶ = 2956157 is a prime.

2956221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2956201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1320 + ... + 2766.

It is an arithmetic number, because the mean of its divisors is an integer number (357656).

2^2956221 is an apocalyptic number.

It is an amenable number.

2956221 is a deficient number, since it is larger than the sum of its proper divisors (1335651).

2956221 is a wasteful number, since it uses less digits than its factorization.

2956221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1677 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 2956221 is about 1719.3664530867. The cubic root of 2956221 is about 143.5199582126.

The spelling of 2956221 in words is "two million, nine hundred fifty-six thousand, two hundred twenty-one".