1889097 has 24 divisors (see below), whose sum is σ = 2987712. Its totient is φ = 1058400.

The previous prime is 1889087. The next prime is 1889099. The reversal of 1889097 is 7909881.

It is not a de Polignac number, because 1889097 - 2⁴ = 1889081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1889099) 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 23 ways as a sum of consecutive naturals, for example, 10347 + ... + 10527.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

2^1889097 is an apocalyptic number.

It is an amenable number.

1889097 is a deficient number, since it is larger than the sum of its proper divisors (1098615).

1889097 is a wasteful number, since it uses less digits than its factorization.

1889097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 1889097 is about 1374.4442513249. Note that the first 3 decimals coincide. The cubic root of 1889097 is about 123.6188652722.

The spelling of 1889097 in words is "one million, eight hundred eighty-nine thousand, ninety-seven".