2897860 has 36 divisors (see below), whose sum is σ = 7081452. Its totient is φ = 993216.

The previous prime is 2897833. The next prime is 2897887. The reversal of 2897860 is 687982.

2897860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2897833) and next prime (2897887).

It can be written as a sum of positive squares in 2 ways, for example, as 777924 + 2119936 = 882^2 + 1456^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 499 + ... + 2458.

It is an arithmetic number, because the mean of its divisors is an integer number (196707).

2^2897860 is an apocalyptic number.

2897860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2897860 is an abundant number, since it is smaller than the sum of its proper divisors (4183592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2897860 is a wasteful number, since it uses less digits than its factorization.

2897860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980 (or 2971 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 2897860 is about 1702.3101949997. The cubic root of 2897860 is about 142.5692286993.

The spelling of 2897860 in words is "two million, eight hundred ninety-seven thousand, eight hundred sixty".