1828637 has 2 divisors, whose sum is σ = 1828638. Its totient is φ = 1828636.

The previous prime is 1828633. The next prime is 1828649. The reversal of 1828637 is 7368281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1819801 + 8836 = 1349^2 + 94^2 .

It is an emirp because it is prime and its reverse (7368281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1828637 - 2² = 1828633 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1828597 and 1828606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1828633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914318 + 914319.

It is an arithmetic number, because the mean of its divisors is an integer number (914319).

2^1828637 is an apocalyptic number.

It is an amenable number.

1828637 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828637 is an equidigital number, since it uses as much as digits as its factorization.

1828637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 1828637 is about 1352.2710527110. The cubic root of 1828637 is about 122.2857451550.

The spelling of 1828637 in words is "one million, eight hundred twenty-eight thousand, six hundred thirty-seven".