2821792 has 24 divisors (see below), whose sum is σ = 5613300. Its totient is φ = 1396224.

The previous prime is 2821771. The next prime is 2821807. The reversal of 2821792 is 2971282.

It can be written as a sum of positive squares in 2 ways, for example, as 2547216 + 274576 = 1596^2 + 524^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3084 + ... + 3892.

2^2821792 is an apocalyptic number.

It is an amenable number.

2821792 is a deficient number, since it is larger than the sum of its proper divisors (2791508).

2821792 is a wasteful number, since it uses less digits than its factorization.

2821792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 920 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 2821792 is about 1679.8190378728. The cubic root of 2821792 is about 141.3106842390.

The spelling of 2821792 in words is "two million, eight hundred twenty-one thousand, seven hundred ninety-two".