7436489 has 2 divisors, whose sum is σ = 7436490. Its totient is φ = 7436488.

The previous prime is 7436479. The next prime is 7436491. The reversal of 7436489 is 9846347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4338889 + 3097600 = 2083^2 + 1760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7436489 is a prime.

Together with 7436491, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 7⁷ + 4⁹ + 3¹⁰ + 6³ + 4¹¹ + 8⁷ + 9² .

It is not a weakly prime, because it can be changed into another prime (7436459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3718244 + 3718245.

It is an arithmetic number, because the mean of its divisors is an integer number (3718245).

Almost surely, 2^7436489 is an apocalyptic number.

It is an amenable number.

7436489 is a deficient number, since it is larger than the sum of its proper divisors (1).

7436489 is an equidigital number, since it uses as much as digits as its factorization.

7436489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 7436489 is about 2726.9926659234. The cubic root of 7436489 is about 195.1892880359.

It can be divided in two parts, 74 and 36489, that added together give a palindrome (36563).

The spelling of 7436489 in words is "seven million, four hundred thirty-six thousand, four hundred eighty-nine".