2887245 has 20 divisors (see below), whose sum is σ = 5176380. Its totient is φ = 1539648.

The previous prime is 2887237. The next prime is 2887279. The reversal of 2887245 is 5427882.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1432809 + 1454436 = 1197^2 + 1206^2 .

It is not a de Polignac number, because 2887245 - 2³ = 2887237 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3160 + ... + 3969.

It is an arithmetic number, because the mean of its divisors is an integer number (258819).

2^2887245 is an apocalyptic number.

It is an amenable number.

2887245 is a deficient number, since it is larger than the sum of its proper divisors (2289135).

2887245 is an equidigital number, since it uses as much as digits as its factorization.

2887245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146 (or 7137 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 2887245 is about 1699.1895126795. The cubic root of 2887245 is about 142.3949364073.

The spelling of 2887245 in words is "two million, eight hundred eighty-seven thousand, two hundred forty-five".