2749971 has 16 divisors (see below), whose sum is σ = 4437504. Its totient is φ = 1478784.

The previous prime is 2749921. The next prime is 2749991. The reversal of 2749971 is 1799472.

It is not a de Polignac number, because 2749971 - 2⁶ = 2749907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2749921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3495 + ... + 4208.

It is an arithmetic number, because the mean of its divisors is an integer number (277344).

2^2749971 is an apocalyptic number.

2749971 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2749971 is a deficient number, since it is larger than the sum of its proper divisors (1687533).

2749971 is a wasteful number, since it uses less digits than its factorization.

2749971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7730.

The product of its digits is 31752, while the sum is 39.

The square root of 2749971 is about 1658.3036513257. The cubic root of 2749971 is about 140.1014740514.

The spelling of 2749971 in words is "two million, seven hundred forty-nine thousand, nine hundred seventy-one".