2749963 has 4 divisors (see below), whose sum is σ = 2763208. Its totient is φ = 2736720.

The previous prime is 2749921. The next prime is 2749991. The reversal of 2749963 is 3699472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2749963 - 2²¹ = 652811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2749913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6306 + ... + 6727.

It is an arithmetic number, because the mean of its divisors is an integer number (690802).

2^2749963 is an apocalyptic number.

2749963 is a deficient number, since it is larger than the sum of its proper divisors (13245).

2749963 is a wasteful number, since it uses less digits than its factorization.

2749963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13244.

The product of its digits is 81648, while the sum is 40.

The square root of 2749963 is about 1658.3012392204. The cubic root of 2749963 is about 140.1013381939.

The spelling of 2749963 in words is "two million, seven hundred forty-nine thousand, nine hundred sixty-three".