2170479 has 4 divisors (see below), whose sum is σ = 2893976. Its totient is φ = 1446984.

The previous prime is 2170477. The next prime is 2170481. The reversal of 2170479 is 9740712.

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 (2170477) and next prime (2170481).

It is not a de Polignac number, because 2170479 - 2¹ = 2170477 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170477) 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, 361744 + ... + 361749.

It is an arithmetic number, because the mean of its divisors is an integer number (723494).

2^2170479 is an apocalyptic number.

2170479 is a deficient number, since it is larger than the sum of its proper divisors (723497).

2170479 is an equidigital number, since it uses as much as digits as its factorization.

2170479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723496.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 2170479 is about 1473.2545604884. The cubic root of 2170479 is about 129.4747842756.

It can be divided in two parts, 21 and 70479, that added together give a triangular number (70500 = T₃₇₅).

The spelling of 2170479 in words is "two million, one hundred seventy thousand, four hundred seventy-nine".