1906093 has 4 divisors (see below), whose sum is σ = 2178400. Its totient is φ = 1633788.

The previous prime is 1906087. The next prime is 1906109. The reversal of 1906093 is 3906091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1906093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1906013) 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, 136143 + ... + 136156.

It is an arithmetic number, because the mean of its divisors is an integer number (544600).

2^1906093 is an apocalyptic number.

It is an amenable number.

1906093 is a deficient number, since it is larger than the sum of its proper divisors (272307).

1906093 is an equidigital number, since it uses as much as digits as its factorization.

1906093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272306.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 1906093 is about 1380.6132695292. The cubic root of 1906093 is about 123.9884874848.

The spelling of 1906093 in words is "one million, nine hundred six thousand, ninety-three".