2874649 has 4 divisors (see below), whose sum is σ = 3043764. Its totient is φ = 2705536.

The previous prime is 2874647. The next prime is 2874673. The reversal of 2874649 is 9464782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1166400 + 1708249 = 1080^2 + 1307^2 .

It is a cyclic number.

It is not a de Polignac number, because 2874649 - 2¹ = 2874647 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

2874649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2874647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84532 + ... + 84565.

It is an arithmetic number, because the mean of its divisors is an integer number (760941).

2^2874649 is an apocalyptic number.

It is an amenable number.

2874649 is a deficient number, since it is larger than the sum of its proper divisors (169115).

2874649 is a wasteful number, since it uses less digits than its factorization.

2874649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169114.

The product of its digits is 96768, while the sum is 40.

The square root of 2874649 is about 1695.4789883688. The cubic root of 2874649 is about 142.1875621060.

The spelling of 2874649 in words is "two million, eight hundred seventy-four thousand, six hundred forty-nine".