2479999 has 8 divisors (see below), whose sum is σ = 2577008. Its totient is φ = 2384640.

The previous prime is 2479991. The next prime is 2480003. The reversal of 2479999 is 9999742.

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 2479999 - 2³ = 2479991 is a prime.

It is a Duffinian number.

2479999 is a modest number, since divided by 9999 gives 247 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2479991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3244 + ... + 3934.

It is an arithmetic number, because the mean of its divisors is an integer number (322126).

2^2479999 is an apocalyptic number.

2479999 is a deficient number, since it is larger than the sum of its proper divisors (97009).

2479999 is an equidigital number, since it uses as much as digits as its factorization.

2479999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825.

The product of its digits is 367416, while the sum is 49.

The square root of 2479999 is about 1574.8012573020. The cubic root of 2479999 is about 135.3579708489.

It can be divided in two parts, 247 and 9999, that multiplied together give a triangular number (2469753 = T₂₂₂₂).

The spelling of 2479999 in words is "two million, four hundred seventy-nine thousand, nine hundred ninety-nine".