2766491 has 24 divisors (see below), whose sum is σ = 3581424. Its totient is φ = 2116800.

The previous prime is 2766487. The next prime is 2766493. The reversal of 2766491 is 1946672.

It is not a de Polignac number, because 2766491 - 2² = 2766487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2766493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27341 + ... + 27441.

It is an arithmetic number, because the mean of its divisors is an integer number (149226).

2^2766491 is an apocalyptic number.

2766491 is a deficient number, since it is larger than the sum of its proper divisors (814933).

2766491 is a wasteful number, since it uses less digits than its factorization.

2766491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 164 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 2766491 is about 1663.2771867611. The cubic root of 2766491 is about 140.3814596882.

The spelling of 2766491 in words is "two million, seven hundred sixty-six thousand, four hundred ninety-one".