1297489 has 4 divisors (see below), whose sum is σ = 1342260. Its totient is φ = 1252720.

The previous prime is 1297487. The next prime is 1297501. The reversal of 1297489 is 9847921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 230400 + 1067089 = 480^2 + 1033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1297489 - 2¹ = 1297487 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1297487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22342 + ... + 22399.

It is an arithmetic number, because the mean of its divisors is an integer number (335565).

2^1297489 is an apocalyptic number.

It is an amenable number.

1297489 is a deficient number, since it is larger than the sum of its proper divisors (44771).

1297489 is an equidigital number, since it uses as much as digits as its factorization.

1297489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44770.

The product of its digits is 36288, while the sum is 40.

The square root of 1297489 is about 1139.0737465151. The cubic root of 1297489 is about 109.0689741041.

The spelling of 1297489 in words is "one million, two hundred ninety-seven thousand, four hundred eighty-nine".