2905920397 has 2 divisors, whose sum is σ = 2905920398. Its totient is φ = 2905920396.

The previous prime is 2905920343. The next prime is 2905920427. The reversal of 2905920397 is 7930295092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1831326436 + 1074593961 = 42794^2 + 32781^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2905920397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2905920697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1452960198 + 1452960199.

It is an arithmetic number, because the mean of its divisors is an integer number (1452960199).

Almost surely, 2^2905920397 is an apocalyptic number.

It is an amenable number.

2905920397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2905920397 is an equidigital number, since it uses as much as digits as its factorization.

2905920397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 2905920397 is about 53906.5895508147. The cubic root of 2905920397 is about 1427.0129175730.

The spelling of 2905920397 in words is "two billion, nine hundred five million, nine hundred twenty thousand, three hundred ninety-seven".