2748819 has 4 divisors (see below), whose sum is σ = 3665096. Its totient is φ = 1832544.

The previous prime is 2748817. The next prime is 2748827. The reversal of 2748819 is 9188472.

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

It is not a de Polignac number, because 2748819 - 2¹ = 2748817 is a prime.

It is a super-2 number, since 2×2748819² = 15112011789522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 7⁶ + 4² + 8³ + 8⁷ + 1 + 9⁶ .

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2748817) 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, 458134 + ... + 458139.

It is an arithmetic number, because the mean of its divisors is an integer number (916274).

2^2748819 is an apocalyptic number.

2748819 is a deficient number, since it is larger than the sum of its proper divisors (916277).

2748819 is an equidigital number, since it uses as much as digits as its factorization.

2748819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916276.

The product of its digits is 32256, while the sum is 39.

The square root of 2748819 is about 1657.9562720410. The cubic root of 2748819 is about 140.0819078523.

The spelling of 2748819 in words is "two million, seven hundred forty-eight thousand, eight hundred nineteen".