2921284 has 6 divisors (see below), whose sum is σ = 5112254. Its totient is φ = 1460640.

The previous prime is 2921273. The next prime is 2921293. The reversal of 2921284 is 4821292.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 760384 = 1470^2 + 872^2 .

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365157 + ... + 365164.

2^2921284 is an apocalyptic number.

It is an amenable number.

2921284 is a deficient number, since it is larger than the sum of its proper divisors (2190970).

2921284 is a wasteful number, since it uses less digits than its factorization.

2921284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730325 (or 730323 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 2921284 is about 1709.1764098536. The cubic root of 2921284 is about 142.9523371237.

The spelling of 2921284 in words is "two million, nine hundred twenty-one thousand, two hundred eighty-four".