2856790 has 16 divisors (see below), whose sum is σ = 5320080. Its totient is φ = 1103200.

The previous prime is 2856779. The next prime is 2856803. The reversal of 2856790 is 976582.

It is a super-2 number, since 2×2856790² = 16322498208200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4636 + ... + 5215.

It is an arithmetic number, because the mean of its divisors is an integer number (332505).

2^2856790 is an apocalyptic number.

2856790 is a deficient number, since it is larger than the sum of its proper divisors (2463290).

2856790 is a wasteful number, since it uses less digits than its factorization.

2856790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9887.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2856790 is about 1690.2041296837. The cubic root of 2856790 is about 141.8924994748.

The spelling of 2856790 in words is "two million, eight hundred fifty-six thousand, seven hundred ninety".