2873644 has 6 divisors (see below), whose sum is σ = 5028884. Its totient is φ = 1436820.

The previous prime is 2873641. The next prime is 2873657. The reversal of 2873644 is 4463782.

It is a d-powerful number, because it can be written as 2¹⁹ + 8⁷ + 7⁶ + 3⁷ + 6⁴ + 4⁸ + 4⁸ .

It is not an unprimeable number, because it can be changed into a prime (2873641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359202 + ... + 359209.

2^2873644 is an apocalyptic number.

It is an amenable number.

2873644 is a deficient number, since it is larger than the sum of its proper divisors (2155240).

2873644 is a wasteful number, since it uses less digits than its factorization.

2873644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718415 (or 718413 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 2873644 is about 1695.1825860361. The cubic root of 2873644 is about 142.1709902096.

The spelling of 2873644 in words is "two million, eight hundred seventy-three thousand, six hundred forty-four".