2042979 has 4 divisors (see below), whose sum is σ = 2723976. Its totient is φ = 1361984.

The previous prime is 2042969. The next prime is 2042981. The reversal of 2042979 is 9792402.

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 2042979 - 2⁷ = 2042851 is a prime.

It is a D-number.

2042979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2042969) 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, 340494 + ... + 340499.

It is an arithmetic number, because the mean of its divisors is an integer number (680994).

2^2042979 is an apocalyptic number.

2042979 is a deficient number, since it is larger than the sum of its proper divisors (680997).

2042979 is an equidigital number, since it uses as much as digits as its factorization.

2042979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680996.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 2042979 is about 1429.3281638588. The cubic root of 2042979 is about 126.8882187526. Note that the first 3 decimals are identical.

The spelling of 2042979 in words is "two million, forty-two thousand, nine hundred seventy-nine".