1438973 has 2 divisors, whose sum is σ = 1438974. Its totient is φ = 1438972.

The previous prime is 1438963. The next prime is 1438979. The reversal of 1438973 is 3798341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1006009 + 432964 = 1003^2 + 658^2 .

It is a cyclic number.

It is not a de Polignac number, because 1438973 - 2¹⁰ = 1437949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1438979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719486 + 719487.

It is an arithmetic number, because the mean of its divisors is an integer number (719487).

2^1438973 is an apocalyptic number.

It is an amenable number.

1438973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438973 is an equidigital number, since it uses as much as digits as its factorization.

1438973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 1438973 is about 1199.5720070092. The cubic root of 1438973 is about 112.8974714144.

The spelling of 1438973 in words is "one million, four hundred thirty-eight thousand, nine hundred seventy-three".