2021479 has 8 divisors (see below), whose sum is σ = 2122880. Its totient is φ = 1922400.

The previous prime is 2021471. The next prime is 2021489. The reversal of 2021479 is 9741202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021479 - 2³ = 2021471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1357 + ... + 2425.

It is an arithmetic number, because the mean of its divisors is an integer number (265360).

2^2021479 is an apocalyptic number.

2021479 is a deficient number, since it is larger than the sum of its proper divisors (101401).

2021479 is a wasteful number, since it uses less digits than its factorization.

2021479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2021479 is about 1421.7872555344. The cubic root of 2021479 is about 126.4415306768.

It can be divided in two parts, 2021 and 479, that added together give a square (2500 = 50²).

The spelling of 2021479 in words is "two million, twenty-one thousand, four hundred seventy-nine".