2969856 has 54 divisors (see below), whose sum is σ = 8569470. Its totient is φ = 989184.

The previous prime is 2969821. The next prime is 2969867. The reversal of 2969856 is 6589692.

It can be written as a sum of positive squares in only one way, i.e., 2822400 + 147456 = 1680^2 + 384^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1660 + ... + 2948.

2^2969856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2969856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4284735).

2969856 is an abundant number, since it is smaller than the sum of its proper divisors (5599614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2969856 is a wasteful number, since it uses less digits than its factorization.

2969856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311 (or 1294 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 2969856 is about 1723.3270148176. The cubic root of 2969856 is about 143.7402725617.

The spelling of 2969856 in words is "two million, nine hundred sixty-nine thousand, eight hundred fifty-six".