2072961897 has 4 divisors (see below), whose sum is σ = 2763949200. Its totient is φ = 1381974596.

The previous prime is 2072961893. The next prime is 2072961941. The reversal of 2072961897 is 7981692702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2072961897 - 2² = 2072961893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2072961893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345493647 + ... + 345493652.

It is an arithmetic number, because the mean of its divisors is an integer number (690987300).

Almost surely, 2^2072961897 is an apocalyptic number.

It is an amenable number.

2072961897 is a deficient number, since it is larger than the sum of its proper divisors (690987303).

2072961897 is an equidigital number, since it uses as much as digits as its factorization.

2072961897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690987302.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 2072961897 is about 45529.7913129415. The cubic root of 2072961897 is about 1275.0594660461.

The spelling of 2072961897 in words is "two billion, seventy-two million, nine hundred sixty-one thousand, eight hundred ninety-seven".