3957223 has 2 divisors, whose sum is σ = 3957224. Its totient is φ = 3957222.

The previous prime is 3957179. The next prime is 3957227. The reversal of 3957223 is 3227593.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3957223 - 2²¹ = 1860071 is a prime.

It is a super-2 number, since 2×3957223² = 31319227743458, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3957227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1978611 + 1978612.

It is an arithmetic number, because the mean of its divisors is an integer number (1978612).

Almost surely, 2^3957223 is an apocalyptic number.

3957223 is a deficient number, since it is larger than the sum of its proper divisors (1).

3957223 is an equidigital number, since it uses as much as digits as its factorization.

3957223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 31.

The square root of 3957223 is about 1989.2770043410. The cubic root of 3957223 is about 158.1722071554.

The spelling of 3957223 in words is "three million, nine hundred fifty-seven thousand, two hundred twenty-three".