2856946 has 4 divisors (see below), whose sum is σ = 4285422. Its totient is φ = 1428472.

The previous prime is 2856923. The next prime is 2856961. The reversal of 2856946 is 6496582.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2852721 + 4225 = 1689^2 + 65^2 .

It is a d-powerful number, because it can be written as 2¹⁹ + 8⁵ + 5⁹ + 6⁵ + 9⁵ + 4 + 6⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 2856899 and 2856908.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714235 + ... + 714238.

2^2856946 is an apocalyptic number.

2856946 is a deficient number, since it is larger than the sum of its proper divisors (1428476).

2856946 is a wasteful number, since it uses less digits than its factorization.

2856946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428475.

The product of its digits is 103680, while the sum is 40.

The square root of 2856946 is about 1690.2502773258. The cubic root of 2856946 is about 141.8950821903.

The spelling of 2856946 in words is "two million, eight hundred fifty-six thousand, nine hundred forty-six".