2897563994 has 16 divisors (see below), whose sum is σ = 4682254248. Its totient is φ = 1336887552.

The previous prime is 2897563993. The next prime is 2897564003. The reversal of 2897563994 is 4993657982.

It is a happy number.

2897563994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2868994969 + 28569025 = 53563^2 + 5345^2 .

It is not an unprimeable number, because it can be changed into a prime (2897563993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67574 + ... + 101790.

Almost surely, 2^2897563994 is an apocalyptic number.

2897563994 is a deficient number, since it is larger than the sum of its proper divisors (1784690254).

2897563994 is a wasteful number, since it uses less digits than its factorization.

2897563994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37489.

The product of its digits is 29393280, while the sum is 62.

The square root of 2897563994 is about 53829.0255717118. The cubic root of 2897563994 is about 1425.6437422232.

The spelling of 2897563994 in words is "two billion, eight hundred ninety-seven million, five hundred sixty-three thousand, nine hundred ninety-four".