1799801 has 2 divisors, whose sum is σ = 1799802. Its totient is φ = 1799800.

The previous prime is 1799797. The next prime is 1799803. The reversal of 1799801 is 1089971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1525225 + 274576 = 1235^2 + 524^2 .

It is a cyclic number.

It is not a de Polignac number, because 1799801 - 2² = 1799797 is a prime.

Together with 1799803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1799803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 899900 + 899901.

It is an arithmetic number, because the mean of its divisors is an integer number (899901).

2^1799801 is an apocalyptic number.

It is an amenable number.

1799801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1799801 is an equidigital number, since it uses as much as digits as its factorization.

1799801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 1799801 is about 1341.5666215287. The cubic root of 1799801 is about 121.6395569381.

The spelling of 1799801 in words is "one million, seven hundred ninety-nine thousand, eight hundred one".