1797804101 has 2 divisors, whose sum is σ = 1797804102. Its totient is φ = 1797804100.

The previous prime is 1797804089. The next prime is 1797804103. The reversal of 1797804101 is 1014087971.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1728064900 + 69739201 = 41570^2 + 8351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1797804101 is a prime.

Together with 1797804103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1797804103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 898902050 + 898902051.

It is an arithmetic number, because the mean of its divisors is an integer number (898902051).

Almost surely, 2^1797804101 is an apocalyptic number.

It is an amenable number.

1797804101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1797804101 is an equidigital number, since it uses as much as digits as its factorization.

1797804101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 38.

The square root of 1797804101 is about 42400.5200557729. The cubic root of 1797804101 is about 1215.9455348142.

The spelling of 1797804101 in words is "one billion, seven hundred ninety-seven million, eight hundred four thousand, one hundred one".