1792991 has 2 divisors, whose sum is σ = 1792992. Its totient is φ = 1792990.

The previous prime is 1792981. The next prime is 1793017. The reversal of 1792991 is 1992971.

It is a weak prime.

It is an emirp because it is prime and its reverse (1992971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1792991 - 2⁶ = 1792927 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 (1792981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 896495 + 896496.

It is an arithmetic number, because the mean of its divisors is an integer number (896496).

2^1792991 is an apocalyptic number.

1792991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1792991 is an equidigital number, since it uses as much as digits as its factorization.

1792991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 38.

The square root of 1792991 is about 1339.0261386545. The cubic root of 1792991 is about 121.4859450738.

The spelling of 1792991 in words is "one million, seven hundred ninety-two thousand, nine hundred ninety-one".