1902089 has 8 divisors (see below), whose sum is σ = 2183808. Its totient is φ = 1622880.

The previous prime is 1902053. The next prime is 1902097. The reversal of 1902089 is 9802091.

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

It is not a de Polignac number, because 1902089 - 2⁸ = 1901833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902029) 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, 1484 + ... + 2450.

It is an arithmetic number, because the mean of its divisors is an integer number (272976).

2^1902089 is an apocalyptic number.

It is an amenable number.

1902089 is a deficient number, since it is larger than the sum of its proper divisors (281719).

1902089 is an equidigital number, since it uses as much as digits as its factorization.

1902089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1902089 is about 1379.1624269824. The cubic root of 1902089 is about 123.9016085602.

The spelling of 1902089 in words is "one million, nine hundred two thousand, eighty-nine".