1936897 has 4 divisors (see below), whose sum is σ = 1940436. Its totient is φ = 1933360.

The previous prime is 1936889. The next prime is 1936943. The reversal of 1936897 is 7986391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7986391 = 7 ⋅1140913.

It can be written as a sum of positive squares in 2 ways, for example, as 1640961 + 295936 = 1281^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 1936897 - 2³ = 1936889 is a prime.

It is a Duffinian number.

1936897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1936817) 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, 754 + ... + 2107.

It is an arithmetic number, because the mean of its divisors is an integer number (485109).

2^1936897 is an apocalyptic number.

It is an amenable number.

1936897 is a deficient number, since it is larger than the sum of its proper divisors (3539).

1936897 is an equidigital number, since it uses as much as digits as its factorization.

1936897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538.

The product of its digits is 81648, while the sum is 43.

The square root of 1936897 is about 1391.7244698574. The cubic root of 1936897 is about 124.6528393954.

The spelling of 1936897 in words is "one million, nine hundred thirty-six thousand, eight hundred ninety-seven".