2497917 has 4 divisors (see below), whose sum is σ = 3330560. Its totient is φ = 1665276.

The previous prime is 2497903. The next prime is 2497927. The reversal of 2497917 is 7197942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2497917 - 2⁸ = 2497661 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2497927) 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 3 ways as a sum of consecutive naturals, for example, 416317 + ... + 416322.

It is an arithmetic number, because the mean of its divisors is an integer number (832640).

2^2497917 is an apocalyptic number.

It is an amenable number.

2497917 is a deficient number, since it is larger than the sum of its proper divisors (832643).

2497917 is an equidigital number, since it uses as much as digits as its factorization.

2497917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832642.

The product of its digits is 31752, while the sum is 39.

The square root of 2497917 is about 1580.4799903827. The cubic root of 2497917 is about 135.6831761433.

The spelling of 2497917 in words is "two million, four hundred ninety-seven thousand, nine hundred seventeen".