2479986 has 12 divisors (see below), whose sum is σ = 5373342. Its totient is φ = 826656.

The previous prime is 2479963. The next prime is 2479987. The reversal of 2479986 is 6899742.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2461761 + 18225 = 1569^2 + 135^2 .

It is not an unprimeable number, because it can be changed into a prime (2479987) 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 5 ways as a sum of consecutive naturals, for example, 68871 + ... + 68906.

2^2479986 is an apocalyptic number.

2479986 is an abundant number, since it is smaller than the sum of its proper divisors (2893356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2479986 is a wasteful number, since it uses less digits than its factorization.

2479986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137785 (or 137782 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 2479986 is about 1574.7971297916. The cubic root of 2479986 is about 135.3577343358.

It can be divided in two parts, 247998 and 6, that added together give a square (248004 = 498²).

The spelling of 2479986 in words is "two million, four hundred seventy-nine thousand, nine hundred eighty-six".