4312489 has 2 divisors, whose sum is σ = 4312490. Its totient is φ = 4312488.

The previous prime is 4312481. The next prime is 4312493. The reversal of 4312489 is 9842134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4272489 + 40000 = 2067^2 + 200^2 .

It is a cyclic number.

It is not a de Polignac number, because 4312489 - 2³ = 4312481 is a prime.

It is a super-2 number, since 2×4312489² = 37195122750242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4312489.

It is not a weakly prime, because it can be changed into another prime (4312481) 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, 2156244 + 2156245.

It is an arithmetic number, because the mean of its divisors is an integer number (2156245).

Almost surely, 2^4312489 is an apocalyptic number.

It is an amenable number.

4312489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312489 is an equidigital number, since it uses as much as digits as its factorization.

4312489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 4312489 is about 2076.6533172391. The cubic root of 4312489 is about 162.7706133936.

The spelling of 4312489 in words is "four million, three hundred twelve thousand, four hundred eighty-nine".