2090266397 has 2 divisors, whose sum is σ = 2090266398. Its totient is φ = 2090266396.

The previous prime is 2090266369. The next prime is 2090266463. The reversal of 2090266397 is 7936620902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1372776601 + 717489796 = 37051^2 + 26786^2 .

It is a cyclic number.

It is not a de Polignac number, because 2090266397 - 2¹² = 2090262301 is a prime.

It is a super-2 number, since 2×2090266397² = 8738427220854723218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2090266327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045133198 + 1045133199.

It is an arithmetic number, because the mean of its divisors is an integer number (1045133199).

Almost surely, 2^2090266397 is an apocalyptic number.

It is an amenable number.

2090266397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090266397 is an equidigital number, since it uses as much as digits as its factorization.

2090266397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 2090266397 is about 45719.4312847393. The cubic root of 2090266397 is about 1278.5975845061.

The spelling of 2090266397 in words is "two billion, ninety million, two hundred sixty-six thousand, three hundred ninety-seven".