2897970171 has 4 divisors (see below), whose sum is σ = 3863960232. Its totient is φ = 1931980112.

The previous prime is 2897970167. The next prime is 2897970209. The reversal of 2897970171 is 1710797982.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2897970171 - 2² = 2897970167 is a prime.

It is a super-2 number, since 2×2897970171² = 16796462224011538482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2897977171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482995026 + ... + 482995031.

It is an arithmetic number, because the mean of its divisors is an integer number (965990058).

Almost surely, 2^2897970171 is an apocalyptic number.

2897970171 is a deficient number, since it is larger than the sum of its proper divisors (965990061).

2897970171 is an equidigital number, since it uses as much as digits as its factorization.

2897970171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965990060.

The product of its (nonzero) digits is 444528, while the sum is 51.

The square root of 2897970171 is about 53832.7982832028. The cubic root of 2897970171 is about 1425.7103541133.

The spelling of 2897970171 in words is "two billion, eight hundred ninety-seven million, nine hundred seventy thousand, one hundred seventy-one".