2508947 has 6 divisors (see below), whose sum is σ = 2918628. Its totient is φ = 2150484.

The previous prime is 2508929. The next prime is 2508953. The reversal of 2508947 is 7498052.

It is a happy number.

It is not a de Polignac number, because 2508947 - 2⁸ = 2508691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2508917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25553 + ... + 25650.

It is an arithmetic number, because the mean of its divisors is an integer number (486438).

2^2508947 is an apocalyptic number.

2508947 is a deficient number, since it is larger than the sum of its proper divisors (409681).

2508947 is an equidigital number, since it uses as much as digits as its factorization.

2508947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51217 (or 51210 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2508947 is about 1583.9655930607. The cubic root of 2508947 is about 135.8825940326.

The spelling of 2508947 in words is "two million, five hundred eight thousand, nine hundred forty-seven".