1896861 has 8 divisors (see below), whose sum is σ = 2616480. Its totient is φ = 1220912.

The previous prime is 1896847. The next prime is 1896871. The reversal of 1896861 is 1686981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1896861 - 2¹⁷ = 1765789 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1896871) 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 7 ways as a sum of consecutive naturals, for example, 10815 + ... + 10988.

It is an arithmetic number, because the mean of its divisors is an integer number (327060).

2^1896861 is an apocalyptic number.

It is an amenable number.

1896861 is a deficient number, since it is larger than the sum of its proper divisors (719619).

1896861 is a wasteful number, since it uses less digits than its factorization.

1896861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21835.

The product of its digits is 20736, while the sum is 39.

The square root of 1896861 is about 1377.2657695594. The cubic root of 1896861 is about 123.7879875215.

The spelling of 1896861 in words is "one million, eight hundred ninety-six thousand, eight hundred sixty-one".