2070298991 has 2 divisors, whose sum is σ = 2070298992. Its totient is φ = 2070298990.

The previous prime is 2070298987. The next prime is 2070299017. The reversal of 2070298991 is 1998920702.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2070298991 - 2² = 2070298987 is a prime.

It is a super-2 number, since 2×2070298991² = 8572275824271236162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2070298921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035149495 + 1035149496.

It is an arithmetic number, because the mean of its divisors is an integer number (1035149496).

Almost surely, 2^2070298991 is an apocalyptic number.

2070298991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2070298991 is an equidigital number, since it uses as much as digits as its factorization.

2070298991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 2070298991 is about 45500.5383594524. The cubic root of 2070298991 is about 1274.5132559061.

The spelling of 2070298991 in words is "two billion, seventy million, two hundred ninety-eight thousand, nine hundred ninety-one".