2764861 has 8 divisors (see below), whose sum is σ = 3175200. Its totient is φ = 2381040.

The previous prime is 2764847. The next prime is 2764871. The reversal of 2764861 is 1684672.

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

It is a cyclic number.

It is not a de Polignac number, because 2764861 - 2¹⁷ = 2633789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2764841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6406 + ... + 6823.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

2^2764861 is an apocalyptic number.

It is an amenable number.

2764861 is a deficient number, since it is larger than the sum of its proper divisors (410339).

2764861 is a wasteful number, since it uses less digits than its factorization.

2764861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13259.

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

The square root of 2764861 is about 1662.7871180641. The cubic root of 2764861 is about 140.3538836320.

The spelling of 2764861 in words is "two million, seven hundred sixty-four thousand, eight hundred sixty-one".