2479669 has 2 divisors, whose sum is σ = 2479670. Its totient is φ = 2479668.

The previous prime is 2479667. The next prime is 2479679. The reversal of 2479669 is 9669742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2137444 + 342225 = 1462^2 + 585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2479669 - 2¹ = 2479667 is a prime.

It is a super-2 number, since 2×2479669² = 12297516699122, which contains 22 as substring.

Together with 2479667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2479661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239834 + 1239835.

It is an arithmetic number, because the mean of its divisors is an integer number (1239835).

2^2479669 is an apocalyptic number.

It is an amenable number.

2479669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2479669 is an equidigital number, since it uses as much as digits as its factorization.

2479669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 2479669 is about 1574.6964786904. The cubic root of 2479669 is about 135.3519667992.

The spelling of 2479669 in words is "two million, four hundred seventy-nine thousand, six hundred sixty-nine".