2081376397 has 2 divisors, whose sum is σ = 2081376398. Its totient is φ = 2081376396.

The previous prime is 2081376389. The next prime is 2081376403. The reversal of 2081376397 is 7936731802.

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., 1084648356 + 996728041 = 32934^2 + 31571^2 .

It is a cyclic number.

It is not a de Polignac number, because 2081376397 - 2³ = 2081376389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2081376347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040688198 + 1040688199.

It is an arithmetic number, because the mean of its divisors is an integer number (1040688199).

Almost surely, 2^2081376397 is an apocalyptic number.

It is an amenable number.

2081376397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081376397 is an equidigital number, since it uses as much as digits as its factorization.

2081376397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 2081376397 is about 45622.1042587910. The cubic root of 2081376397 is about 1276.7823637062.

The spelling of 2081376397 in words is "two billion, eighty-one million, three hundred seventy-six thousand, three hundred ninety-seven".