1896693 has 4 divisors (see below), whose sum is σ = 2528928. Its totient is φ = 1264460.

The previous prime is 1896689. The next prime is 1896721. The reversal of 1896693 is 3966981.

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: 3966981 = 3 ⋅1322327.

It is a cyclic number.

It is not a de Polignac number, because 1896693 - 2² = 1896689 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1896683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316113 + ... + 316118.

It is an arithmetic number, because the mean of its divisors is an integer number (632232).

2^1896693 is an apocalyptic number.

It is an amenable number.

1896693 is a deficient number, since it is larger than the sum of its proper divisors (632235).

1896693 is an equidigital number, since it uses as much as digits as its factorization.

1896693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632234.

The product of its digits is 69984, while the sum is 42.

The square root of 1896693 is about 1377.2047778018. The cubic root of 1896693 is about 123.7843328879.

The spelling of 1896693 in words is "one million, eight hundred ninety-six thousand, six hundred ninety-three".