2427389 has 2 divisors, whose sum is σ = 2427390. Its totient is φ = 2427388.

The previous prime is 2427371. The next prime is 2427407. The reversal of 2427389 is 9837242.

It is a balanced prime because it is at equal distance from previous prime (2427371) and next prime (2427407).

It can be written as a sum of positive squares in only one way, i.e., 2427364 + 25 = 1558^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 2427389 - 2²⁰ = 1378813 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2427349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1213694 + 1213695.

It is an arithmetic number, because the mean of its divisors is an integer number (1213695).

2^2427389 is an apocalyptic number.

It is an amenable number.

2427389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2427389 is an equidigital number, since it uses as much as digits as its factorization.

2427389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 2427389 is about 1558.0080230859. The cubic root of 2427389 is about 134.3939730917.

It can be divided in two parts, 2 and 427389, that multiplied together give a triangular number (854778 = T₁₃₀₇).

The spelling of 2427389 in words is "two million, four hundred twenty-seven thousand, three hundred eighty-nine".