1798906 has 16 divisors (see below), whose sum is σ = 2883816. Its totient is φ = 838656.

The previous prime is 1798897. The next prime is 1798913. The reversal of 1798906 is 6098971.

It can be written as a sum of positive squares in 4 ways, for example, as 1428025 + 370881 = 1195^2 + 609^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5170 + ... + 5506.

2^1798906 is an apocalyptic number.

1798906 is a deficient number, since it is larger than the sum of its proper divisors (1084910).

1798906 is a wasteful number, since it uses less digits than its factorization.

1798906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1798906 is about 1341.2330148039. The cubic root of 1798906 is about 121.6193907356.

It can be divided in two parts, 1798 and 906, that added together give a square (2704 = 52²).

The spelling of 1798906 in words is "one million, seven hundred ninety-eight thousand, nine hundred six".