2823890 has 8 divisors (see below), whose sum is σ = 5083020. Its totient is φ = 1129552.

The previous prime is 2823889. The next prime is 2823911. The reversal of 2823890 is 983282.

It is a happy number.

2823890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2627641 + 196249 = 1621^2 + 443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141185 + ... + 141204.

2^2823890 is an apocalyptic number.

2823890 is a deficient number, since it is larger than the sum of its proper divisors (2259130).

2823890 is a wasteful number, since it uses less digits than its factorization.

2823890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282396.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 2823890 is about 1680.4433938696. The cubic root of 2823890 is about 141.3456970217.

The spelling of 2823890 in words is "two million, eight hundred twenty-three thousand, eight hundred ninety".