4431457 has 2 divisors, whose sum is σ = 4431458. Its totient is φ = 4431456.

The previous prime is 4431443. The next prime is 4431463. The reversal of 4431457 is 7541344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3083536 + 1347921 = 1756^2 + 1161^2 .

It is a cyclic number.

It is not a de Polignac number, because 4431457 - 2¹⁵ = 4398689 is a prime.

It is a super-2 number, since 2×4431457² = 39275622285698, which contains 22 as substring.

4431457 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4431487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2215728 + 2215729.

It is an arithmetic number, because the mean of its divisors is an integer number (2215729).

Almost surely, 2^4431457 is an apocalyptic number.

It is an amenable number.

4431457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4431457 is an equidigital number, since it uses as much as digits as its factorization.

4431457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 28.

The square root of 4431457 is about 2105.1026103257. The cubic root of 4431457 is about 164.2538330790.

The spelling of 4431457 in words is "four million, four hundred thirty-one thousand, four hundred fifty-seven".