2104397 has 2 divisors, whose sum is σ = 2104398. Its totient is φ = 2104396.

The previous prime is 2104391. The next prime is 2104423. The reversal of 2104397 is 7934012.

It is an a-pointer prime, because the next prime (2104423) can be obtained adding 2104397 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1811716 + 292681 = 1346^2 + 541^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104397 - 2⁴ = 2104381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2104391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052198 + 1052199.

It is an arithmetic number, because the mean of its divisors is an integer number (1052199).

2^2104397 is an apocalyptic number.

It is an amenable number.

2104397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104397 is an equidigital number, since it uses as much as digits as its factorization.

2104397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2104397 is about 1450.6539904471. The cubic root of 2104397 is about 128.1472304873.

The spelling of 2104397 in words is "two million, one hundred four thousand, three hundred ninety-seven".