2897288121 has 96 divisors (see below), whose sum is σ = 5180692608. Its totient is φ = 1422489600.

The previous prime is 2897288063. The next prime is 2897288137. The reversal of 2897288121 is 1218827982.

It is not a de Polignac number, because 2897288121 - 2⁹ = 2897287609 is a prime.

Its product of digits (258048) is a multiple of the sum of its prime divisors (1024).

It is not an unprimeable number, because it can be changed into a prime (2897288521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3280746 + ... + 3281628.

It is an arithmetic number, because the mean of its divisors is an integer number (53965548).

Almost surely, 2^2897288121 is an apocalyptic number.

2897288121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2897288121 is a deficient number, since it is larger than the sum of its proper divisors (2283404487).

2897288121 is a wasteful number, since it uses less digits than its factorization.

2897288121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 1024 counting only the distinct ones).

The product of its digits is 258048, while the sum is 48.

The square root of 2897288121 is about 53826.4630177388. The cubic root of 2897288121 is about 1425.5984962741.

The spelling of 2897288121 in words is "two billion, eight hundred ninety-seven million, two hundred eighty-eight thousand, one hundred twenty-one".