1438797 has 4 divisors (see below), whose sum is σ = 1918400. Its totient is φ = 959196.

The previous prime is 1438793. The next prime is 1438817. The reversal of 1438797 is 7978341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1438797 - 2² = 1438793 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438793) 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, 239797 + ... + 239802.

It is an arithmetic number, because the mean of its divisors is an integer number (479600).

2^1438797 is an apocalyptic number.

It is an amenable number.

1438797 is a deficient number, since it is larger than the sum of its proper divisors (479603).

1438797 is an equidigital number, since it uses as much as digits as its factorization.

1438797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479602.

The product of its digits is 42336, while the sum is 39.

The square root of 1438797 is about 1199.4986452681. The cubic root of 1438797 is about 112.8928684174.

The spelling of 1438797 in words is "one million, four hundred thirty-eight thousand, seven hundred ninety-seven".