2749997 has 4 divisors (see below), whose sum is σ = 2776800. Its totient is φ = 2723196.

The previous prime is 2749991. The next prime is 2750021. The reversal of 2749997 is 7999472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2749997 - 2¹⁰ = 2748973 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 (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 3 ways as a sum of consecutive naturals, for example, 13247 + ... + 13452.

It is an arithmetic number, because the mean of its divisors is an integer number (694200).

2^2749997 is an apocalyptic number.

It is an amenable number.

2749997 is a deficient number, since it is larger than the sum of its proper divisors (26803).

2749997 is a wasteful number, since it uses less digits than its factorization.

2749997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26802.

The product of its digits is 285768, while the sum is 47.

The square root of 2749997 is about 1658.3114906434. The cubic root of 2749997 is about 140.1019155866.

The spelling of 2749997 in words is "two million, seven hundred forty-nine thousand, nine hundred ninety-seven".