2749995 has 24 divisors (see below), whose sum is σ = 4975776. Its totient is φ = 1402368.

The previous prime is 2749991. The next prime is 2750021. The reversal of 2749995 is 5999472.

It is not a de Polignac number, because 2749995 - 2² = 2749991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

2749995 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2749995.

It is not an unprimeable number, because it can be changed into a prime (2749991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294 + ... + 2363.

It is an arithmetic number, because the mean of its divisors is an integer number (207324).

2^2749995 is an apocalyptic number.

2749995 is a deficient number, since it is larger than the sum of its proper divisors (2225781).

2749995 is a wasteful number, since it uses less digits than its factorization.

2749995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691 (or 2688 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 2749995 is about 1658.3108876203. The cubic root of 2749995 is about 140.1018816224.

The spelling of 2749995 in words is "two million, seven hundred forty-nine thousand, nine hundred ninety-five".