2897394811 has 4 divisors (see below), whose sum is σ = 2898475000. Its totient is φ = 2896314624.

The previous prime is 2897394769. The next prime is 2897394817. The reversal of 2897394811 is 1184937982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1184937982 = 2 ⋅592468991.

It is a cyclic number.

It is not a de Polignac number, because 2897394811 - 2¹¹ = 2897392763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2897394817) 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, 536061 + ... + 541438.

It is an arithmetic number, because the mean of its divisors is an integer number (724618750).

Almost surely, 2^2897394811 is an apocalyptic number.

2897394811 is a deficient number, since it is larger than the sum of its proper divisors (1080189).

2897394811 is a wasteful number, since it uses less digits than its factorization.

2897394811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080188.

The product of its digits is 870912, while the sum is 52.

The square root of 2897394811 is about 53827.4540638883. The cubic root of 2897394811 is about 1425.6159948487.

The spelling of 2897394811 in words is "two billion, eight hundred ninety-seven million, three hundred ninety-four thousand, eight hundred eleven".