2764991 has 8 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 2628472.

The previous prime is 2764967. The next prime is 2765039. The reversal of 2764991 is 1994672.

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 2764991 - 2¹⁰ = 2763967 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 (2764901) 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, 5246 + ... + 5748.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

2^2764991 is an apocalyptic number.

2764991 is a deficient number, since it is larger than the sum of its proper divisors (138049).

2764991 is a wasteful number, since it uses less digits than its factorization.

2764991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765.

The product of its digits is 27216, while the sum is 38.

The square root of 2764991 is about 1662.8262085979. The cubic root of 2764991 is about 140.3560833470.

The spelling of 2764991 in words is "two million, seven hundred sixty-four thousand, nine hundred ninety-one".