2861764 has 6 divisors (see below), whose sum is σ = 5008094. Its totient is φ = 1430880.

The previous prime is 2861743. The next prime is 2861767. The reversal of 2861764 is 4671682.

2861764 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1742400 + 1119364 = 1320^2 + 1058^2 .

It is not an unprimeable number, because it can be changed into a prime (2861767) by changing a digit.

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 as a sum of consecutive naturals, namely, 357717 + ... + 357724.

2^2861764 is an apocalyptic number.

It is an amenable number.

2861764 is a deficient number, since it is larger than the sum of its proper divisors (2146330).

2861764 is a wasteful number, since it uses less digits than its factorization.

2861764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715445 (or 715443 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 2861764 is about 1691.6749096679. The cubic root of 2861764 is about 141.9748021149.

The spelling of 2861764 in words is "two million, eight hundred sixty-one thousand, seven hundred sixty-four".