2721070897 has 2 divisors, whose sum is σ = 2721070898. Its totient is φ = 2721070896.

The previous prime is 2721070889. The next prime is 2721070927. The reversal of 2721070897 is 7980701272.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2374515441 + 346555456 = 48729^2 + 18616^2 .

It is a cyclic number.

It is not a de Polignac number, because 2721070897 - 2³ = 2721070889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2721070817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360535448 + 1360535449.

It is an arithmetic number, because the mean of its divisors is an integer number (1360535449).

Almost surely, 2^2721070897 is an apocalyptic number.

It is an amenable number.

2721070897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721070897 is an equidigital number, since it uses as much as digits as its factorization.

2721070897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 2721070897 is about 52163.8849876042. The cubic root of 2721070897 is about 1396.0895804413.

The spelling of 2721070897 in words is "two billion, seven hundred twenty-one million, seventy thousand, eight hundred ninety-seven".