2897163639 has 8 divisors (see below), whose sum is σ = 4292094320. Its totient is φ = 1931442408.

The previous prime is 2897163631. The next prime is 2897163653. The reversal of 2897163639 is 9363617982.

It is not a de Polignac number, because 2897163639 - 2³ = 2897163631 is a prime.

It is a super-2 number, since 2×2897163639² = 16787114302287444642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897163631) 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, 53651152 + ... + 53651205.

It is an arithmetic number, because the mean of its divisors is an integer number (536511790).

Almost surely, 2^2897163639 is an apocalyptic number.

2897163639 is a deficient number, since it is larger than the sum of its proper divisors (1394930681).

2897163639 is a wasteful number, since it uses less digits than its factorization.

2897163639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107302366 (or 107302360 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 2897163639 is about 53825.3066781788. The cubic root of 2897163639 is about 1425.5780790327.

The spelling of 2897163639 in words is "two billion, eight hundred ninety-seven million, one hundred sixty-three thousand, six hundred thirty-nine".