1795991 has 2 divisors, whose sum is σ = 1795992. Its totient is φ = 1795990.

The previous prime is 1795987. The next prime is 1796009. The reversal of 1795991 is 1995971.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1995971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1795991 - 2² = 1795987 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1795921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 897995 + 897996.

It is an arithmetic number, because the mean of its divisors is an integer number (897996).

2^1795991 is an apocalyptic number.

1795991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1795991 is an equidigital number, since it uses as much as digits as its factorization.

1795991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25515, while the sum is 41.

The square root of 1795991 is about 1340.1458875809. The cubic root of 1795991 is about 121.5536633457.

The spelling of 1795991 in words is "one million, seven hundred ninety-five thousand, nine hundred ninety-one".