1881067 has 4 divisors (see below), whose sum is σ = 1991736. Its totient is φ = 1770400.

The previous prime is 1881041. The next prime is 1881071. The reversal of 1881067 is 7601881.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1881067 - 2⁷ = 1880939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1881037) 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, 55309 + ... + 55342.

It is an arithmetic number, because the mean of its divisors is an integer number (497934).

2^1881067 is an apocalyptic number.

1881067 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1881067 is a deficient number, since it is larger than the sum of its proper divisors (110669).

1881067 is a wasteful number, since it uses less digits than its factorization.

1881067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110668.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 1881067 is about 1371.5199597527. The cubic root of 1881067 is about 123.4434605998.

The spelling of 1881067 in words is "one million, eight hundred eighty-one thousand, sixty-seven".