2897800 has 24 divisors (see below), whose sum is σ = 6737850. Its totient is φ = 1159040.

The previous prime is 2897789. The next prime is 2897801. The reversal of 2897800 is 87982.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1602756 + 1295044 = 1266^2 + 1138^2 .

It is not an unprimeable number, because it can be changed into a prime (2897801) 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, 7045 + ... + 7444.

2^2897800 is an apocalyptic number.

2897800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2897800 is an abundant number, since it is smaller than the sum of its proper divisors (3840050).

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

2897800 is a wasteful number, since it uses less digits than its factorization.

2897800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14505 (or 14496 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2897800 is about 1702.2925717984. The cubic root of 2897800 is about 142.5682447304.

It can be divided in two parts, 2 and 897800, that multiplied together give a square (1795600 = 1340²).

The spelling of 2897800 in words is "two million, eight hundred ninety-seven thousand, eight hundred".