3947227 has 2 divisors, whose sum is σ = 3947228. Its totient is φ = 3947226.

The previous prime is 3947189. The next prime is 3947233. The reversal of 3947227 is 7227493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3947227 - 2¹⁵ = 3914459 is a prime.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 3947192 and 3947201.

It is not a weakly prime, because it can be changed into another prime (3947297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1973613 + 1973614.

It is an arithmetic number, because the mean of its divisors is an integer number (1973614).

Almost surely, 2^3947227 is an apocalyptic number.

3947227 is a deficient number, since it is larger than the sum of its proper divisors (1).

3947227 is an equidigital number, since it uses as much as digits as its factorization.

3947227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 34.

The square root of 3947227 is about 1986.7629450944. The cubic root of 3947227 is about 158.0389131308.

The spelling of 3947227 in words is "three million, nine hundred forty-seven thousand, two hundred twenty-seven".