1946897 has 4 divisors (see below), whose sum is σ = 1956336. Its totient is φ = 1937460.

The previous prime is 1946869. The next prime is 1946899. The reversal of 1946897 is 7986491.

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: 7986491 = 673 ⋅11867.

It is a cyclic number.

It is not a de Polignac number, because 1946897 - 2⁸ = 1946641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1946899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4403 + ... + 4824.

It is an arithmetic number, because the mean of its divisors is an integer number (489084).

2^1946897 is an apocalyptic number.

It is an amenable number.

1946897 is a deficient number, since it is larger than the sum of its proper divisors (9439).

1946897 is an equidigital number, since it uses as much as digits as its factorization.

1946897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9438.

The product of its digits is 108864, while the sum is 44.

The square root of 1946897 is about 1395.3125097984. The cubic root of 1946897 is about 124.8669945265.

The spelling of 1946897 in words is "one million, nine hundred forty-six thousand, eight hundred ninety-seven".