2642979 has 4 divisors (see below), whose sum is σ = 3523976. Its totient is φ = 1761984.

The previous prime is 2642971. The next prime is 2642987. The reversal of 2642979 is 9792462.

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 (2642971) and next prime (2642987).

It is not a de Polignac number, because 2642979 - 2³ = 2642971 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁴ + 4⁷ + 2²¹ + 9³ + 7⁴ + 9³ .

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642971) 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, 440494 + ... + 440499.

It is an arithmetic number, because the mean of its divisors is an integer number (880994).

2^2642979 is an apocalyptic number.

2642979 is a deficient number, since it is larger than the sum of its proper divisors (880997).

2642979 is an equidigital number, since it uses as much as digits as its factorization.

2642979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880996.

The product of its digits is 54432, while the sum is 39.

The square root of 2642979 is about 1625.7241463422. The cubic root of 2642979 is about 138.2604302882.

The spelling of 2642979 in words is "two million, six hundred forty-two thousand, nine hundred seventy-nine".