1888861 has 16 divisors (see below), whose sum is σ = 2168320. Its totient is φ = 1632960.

The previous prime is 1888849. The next prime is 1888879. The reversal of 1888861 is 1688881.

It is a cyclic number.

It is not a de Polignac number, because 1888861 - 2⁹ = 1888349 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1888841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17275 + ... + 17383.

It is an arithmetic number, because the mean of its divisors is an integer number (135520).

2^1888861 is an apocalyptic number.

It is an amenable number.

1888861 is a deficient number, since it is larger than the sum of its proper divisors (279459).

1888861 is a wasteful number, since it uses less digits than its factorization.

1888861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196.

The product of its digits is 24576, while the sum is 40.

The square root of 1888861 is about 1374.3583957615. The cubic root of 1888861 is about 123.6137172628.

The spelling of 1888861 in words is "one million, eight hundred eighty-eight thousand, eight hundred sixty-one".