2308898621 has 2 divisors, whose sum is σ = 2308898622. Its totient is φ = 2308898620.

The previous prime is 2308898593. The next prime is 2308898623. The reversal of 2308898621 is 1268988032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2281972900 + 26925721 = 47770^2 + 5189^2 .

It is a cyclic number.

It is not a de Polignac number, because 2308898621 - 2²² = 2304704317 is a prime.

Together with 2308898623, 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 (2308898623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154449310 + 1154449311.

It is an arithmetic number, because the mean of its divisors is an integer number (1154449311).

Almost surely, 2^2308898621 is an apocalyptic number.

It is an amenable number.

2308898621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2308898621 is an equidigital number, since it uses as much as digits as its factorization.

2308898621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 2308898621 is about 48051.0002081122. Note that the first 3 decimals coincide. The cubic root of 2308898621 is about 1321.7062838365.

The spelling of 2308898621 in words is "two billion, three hundred eight million, eight hundred ninety-eight thousand, six hundred twenty-one".