2196900691 has 2 divisors, whose sum is σ = 2196900692. Its totient is φ = 2196900690.

The previous prime is 2196900677. The next prime is 2196900697. The reversal of 2196900691 is 1960096912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2196900691 - 2²¹ = 2194803539 is a prime.

It is a super-2 number, since 2×2196900691² = 9652745292232554962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2196900697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098450345 + 1098450346.

It is an arithmetic number, because the mean of its divisors is an integer number (1098450346).

Almost surely, 2^2196900691 is an apocalyptic number.

2196900691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196900691 is an equidigital number, since it uses as much as digits as its factorization.

2196900691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 2196900691 is about 46871.1072090259. The cubic root of 2196900691 is about 1299.9804121309.

The spelling of 2196900691 in words is "two billion, one hundred ninety-six million, nine hundred thousand, six hundred ninety-one".