1872089 has 8 divisors (see below), whose sum is σ = 2024640. Its totient is φ = 1724976.

The previous prime is 1872049. The next prime is 1872097. The reversal of 1872089 is 9802781.

It is a happy number.

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 1872089 - 2¹² = 1867993 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629 + ... + 2034.

It is an arithmetic number, because the mean of its divisors is an integer number (253080).

2^1872089 is an apocalyptic number.

1872089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1872089 is a deficient number, since it is larger than the sum of its proper divisors (152551).

1872089 is a wasteful number, since it uses less digits than its factorization.

1872089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1872089 is about 1368.2430339673. The cubic root of 1872089 is about 123.2467560557.

The spelling of 1872089 in words is "one million, eight hundred seventy-two thousand, eighty-nine".