2449789 has 2 divisors, whose sum is σ = 2449790. Its totient is φ = 2449788.

The previous prime is 2449787. The next prime is 2449793. The reversal of 2449789 is 9879442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1276900 + 1172889 = 1130^2 + 1083^2 .

It is a cyclic number.

It is not a de Polignac number, because 2449789 - 2¹ = 2449787 is a prime.

It is a super-2 number, since 2×2449789² = 12002932289042, which contains 22 as substring.

Together with 2449787, it forms a pair of twin primes.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2449787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224894 + 1224895.

It is an arithmetic number, because the mean of its divisors is an integer number (1224895).

2^2449789 is an apocalyptic number.

It is an amenable number.

2449789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449789 is an equidigital number, since it uses as much as digits as its factorization.

2449789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 2449789 is about 1565.1801813210. The cubic root of 2449789 is about 134.8061048226.

The spelling of 2449789 in words is "two million, four hundred forty-nine thousand, seven hundred eighty-nine".