1828993 has 2 divisors, whose sum is σ = 1828994. Its totient is φ = 1828992.

The previous prime is 1828973. The next prime is 1828999. The reversal of 1828993 is 3998281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1827904 + 1089 = 1352^2 + 33^2 .

It is a cyclic number.

It is not a de Polignac number, because 1828993 - 2⁹ = 1828481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1828999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914496 + 914497.

It is an arithmetic number, because the mean of its divisors is an integer number (914497).

2^1828993 is an apocalyptic number.

It is an amenable number.

1828993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828993 is an equidigital number, since it uses as much as digits as its factorization.

1828993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 1828993 is about 1352.4026767202. The cubic root of 1828993 is about 122.2936801909.

The spelling of 1828993 in words is "one million, eight hundred twenty-eight thousand, nine hundred ninety-three".