2897898971 has 6 divisors (see below), whose sum is σ = 3161539116. Its totient is φ = 2634291300.

The previous prime is 2897898947. The next prime is 2897898989. The reversal of 2897898971 is 1798987982.

It is not a de Polignac number, because 2897898971 - 2⁶ = 2897898907 is a prime.

It is a super-2 number, since 2×2897898971² = 16795636892245717682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2897894971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170426 + ... + 186656.

It is an arithmetic number, because the mean of its divisors is an integer number (526923186).

Almost surely, 2^2897898971 is an apocalyptic number.

2897898971 is a deficient number, since it is larger than the sum of its proper divisors (263640145).

2897898971 is an frugal number, since it uses more digits than its factorization.

2897898971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32473 (or 16242 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 68.

The square root of 2897898971 is about 53832.1369722585. The cubic root of 2897898971 is about 1425.6986779627.

The spelling of 2897898971 in words is "two billion, eight hundred ninety-seven million, eight hundred ninety-eight thousand, nine hundred seventy-one".