1424989 has 2 divisors, whose sum is σ = 1424990. Its totient is φ = 1424988.

The previous prime is 1424963. The next prime is 1425007. The reversal of 1424989 is 9894241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980100 + 444889 = 990^2 + 667^2 .

It is a cyclic number.

It is not a de Polignac number, because 1424989 - 2⁹ = 1424477 is a prime.

1424989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1424939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712494 + 712495.

It is an arithmetic number, because the mean of its divisors is an integer number (712495).

2^1424989 is an apocalyptic number.

It is an amenable number.

1424989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1424989 is an equidigital number, since it uses as much as digits as its factorization.

1424989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 1424989 is about 1193.7290312294. The cubic root of 1424989 is about 112.5305661800.

The spelling of 1424989 in words is "one million, four hundred twenty-four thousand, nine hundred eighty-nine".