2389531 has 2 divisors, whose sum is σ = 2389532. Its totient is φ = 2389530.

The previous prime is 2389529. The next prime is 2389547. The reversal of 2389531 is 1359832.

It is a happy number.

2389531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2389531 - 2¹ = 2389529 is a prime.

It is a super-2 number, since 2×2389531² = 11419716799922, which contains 22 as substring.

Together with 2389529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2389493 and 2389502.

It is not a weakly prime, because it can be changed into another prime (2389501) 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, 1194765 + 1194766.

It is an arithmetic number, because the mean of its divisors is an integer number (1194766).

2^2389531 is an apocalyptic number.

2389531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2389531 is an equidigital number, since it uses as much as digits as its factorization.

2389531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 2389531 is about 1545.8107904915. The cubic root of 2389531 is about 133.6916314449.

The spelling of 2389531 in words is "two million, three hundred eighty-nine thousand, five hundred thirty-one".