2298890621 has 2 divisors, whose sum is σ = 2298890622. Its totient is φ = 2298890620.

The previous prime is 2298890597. The next prime is 2298890651. The reversal of 2298890621 is 1260988922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1688059396 + 610831225 = 41086^2 + 24715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2298890621 - 2¹⁰ = 2298889597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2298890651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1149445310 + 1149445311.

It is an arithmetic number, because the mean of its divisors is an integer number (1149445311).

Almost surely, 2^2298890621 is an apocalyptic number.

It is an amenable number.

2298890621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2298890621 is an equidigital number, since it uses as much as digits as its factorization.

2298890621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 2298890621 is about 47946.7477624917. The cubic root of 2298890621 is about 1319.7938576542.

The spelling of 2298890621 in words is "two billion, two hundred ninety-eight million, eight hundred ninety thousand, six hundred twenty-one".