4221977 has 2 divisors, whose sum is σ = 4221978. Its totient is φ = 4221976.

The previous prime is 4221953. The next prime is 4221989. The reversal of 4221977 is 7791224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4206601 + 15376 = 2051^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221977 - 2⁶ = 4221913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4221577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110988 + 2110989.

It is an arithmetic number, because the mean of its divisors is an integer number (2110989).

Almost surely, 2^4221977 is an apocalyptic number.

It is an amenable number.

4221977 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221977 is an equidigital number, since it uses as much as digits as its factorization.

4221977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 4221977 is about 2054.7449963438. The cubic root of 4221977 is about 161.6237904270.

The spelling of 4221977 in words is "four million, two hundred twenty-one thousand, nine hundred seventy-seven".