2499747 has 8 divisors (see below), whose sum is σ = 3440640. Its totient is φ = 1612680.

The previous prime is 2499727. The next prime is 2499751. The reversal of 2499747 is 7479942.

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

It is not a de Polignac number, because 2499747 - 2⁷ = 2499619 is a prime.

2499747 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2499699 and 2499708.

It is not an unprimeable number, because it can be changed into a prime (2499727) 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, 13347 + ... + 13532.

It is an arithmetic number, because the mean of its divisors is an integer number (430080).

2^2499747 is an apocalyptic number.

2499747 is a deficient number, since it is larger than the sum of its proper divisors (940893).

2499747 is a wasteful number, since it uses less digits than its factorization.

2499747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26913.

The product of its digits is 127008, while the sum is 42.

The square root of 2499747 is about 1581.0588224351. The cubic root of 2499747 is about 135.7163023576.

The spelling of 2499747 in words is "two million, four hundred ninety-nine thousand, seven hundred forty-seven".