2748979 has 4 divisors (see below), whose sum is σ = 2754040. Its totient is φ = 2743920.

The previous prime is 2748973. The next prime is 2749007. The reversal of 2748979 is 9798472.

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

It is a cyclic number.

It is not a de Polignac number, because 2748979 - 2³ = 2748971 is a prime.

It is a Duffinian number.

2748979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2748971) 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, 1602 + ... + 2839.

It is an arithmetic number, because the mean of its divisors is an integer number (688510).

2^2748979 is an apocalyptic number.

2748979 is a deficient number, since it is larger than the sum of its proper divisors (5061).

2748979 is an equidigital number, since it uses as much as digits as its factorization.

2748979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060.

The product of its digits is 254016, while the sum is 46.

The square root of 2748979 is about 1658.0045235161. The cubic root of 2748979 is about 140.0846257068.

The spelling of 2748979 in words is "two million, seven hundred forty-eight thousand, nine hundred seventy-nine".