2743997 has 4 divisors (see below), whose sum is σ = 2781660. Its totient is φ = 2706336.

The previous prime is 2743991. The next prime is 2744003. The reversal of 2743997 is 7993472.

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

It is an interprime number because it is at equal distance from previous prime (2743991) and next prime (2744003).

It can be written as a sum of positive squares in 2 ways, for example, as 1705636 + 1038361 = 1306^2 + 1019^2 .

It is a cyclic number.

It is not a de Polignac number, because 2743997 - 2⁶ = 2743933 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 7⁴ + 4⁸ + 3¹³ + 9⁶ + 9⁶ + 7⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2743991) 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, 18722 + ... + 18867.

It is an arithmetic number, because the mean of its divisors is an integer number (695415).

2^2743997 is an apocalyptic number.

It is an amenable number.

2743997 is a deficient number, since it is larger than the sum of its proper divisors (37663).

2743997 is an equidigital number, since it uses as much as digits as its factorization.

2743997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37662.

The product of its digits is 95256, while the sum is 41.

The square root of 2743997 is about 1656.5014337452. The cubic root of 2743997 is about 139.9999489796. Note that the first 4 decimals are identical.

The spelling of 2743997 in words is "two million, seven hundred forty-three thousand, nine hundred ninety-seven".