1938497 has 4 divisors (see below), whose sum is σ = 2114736. Its totient is φ = 1762260.

The previous prime is 1938491. The next prime is 1938499. The reversal of 1938497 is 7948391.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7948391 = 11 ⋅722581.

It is a cyclic number.

It is not a de Polignac number, because 1938497 - 2²⁰ = 889921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1938491) 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, 88103 + ... + 88124.

It is an arithmetic number, because the mean of its divisors is an integer number (528684).

2^1938497 is an apocalyptic number.

It is an amenable number.

1938497 is a deficient number, since it is larger than the sum of its proper divisors (176239).

1938497 is a wasteful number, since it uses less digits than its factorization.

1938497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176238.

The product of its digits is 54432, while the sum is 41.

The square root of 1938497 is about 1392.2991776195. The cubic root of 1938497 is about 124.6871536706.

The spelling of 1938497 in words is "one million, nine hundred thirty-eight thousand, four hundred ninety-seven".