2497649 has 16 divisors (see below), whose sum is σ = 3148800. Its totient is φ = 1924560.

The previous prime is 2497637. The next prime is 2497661. The reversal of 2497649 is 9467942.

It is an interprime number because it is at equal distance from previous prime (2497637) and next prime (2497661).

It is not a de Polignac number, because 2497649 - 2⁴ = 2497633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2497609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12452 + ... + 12650.

It is an arithmetic number, because the mean of its divisors is an integer number (196800).

2^2497649 is an apocalyptic number.

It is an amenable number.

2497649 is a deficient number, since it is larger than the sum of its proper divisors (651151).

2497649 is a wasteful number, since it uses less digits than its factorization.

2497649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its digits is 108864, while the sum is 41.

The square root of 2497649 is about 1580.3952037386. The cubic root of 2497649 is about 135.6783235145.

The spelling of 2497649 in words is "two million, four hundred ninety-seven thousand, six hundred forty-nine".