2597216 has 12 divisors (see below), whose sum is σ = 5113332. Its totient is φ = 1298592.

The previous prime is 2597207. The next prime is 2597233. The reversal of 2597216 is 6127952.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 81163 = 2597216 / (2 + 5 + 9 + 7 + 2 + 1 + 6).

It is a d-powerful number, because it can be written as 2⁷ + 5⁹ + 9³ + 7⁶ + 2¹⁹ + 1 + 6⁴ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40550 + ... + 40613.

It is an arithmetic number, because the mean of its divisors is an integer number (426111).

2^2597216 is an apocalyptic number.

It is an amenable number.

2597216 is a deficient number, since it is larger than the sum of its proper divisors (2516116).

2597216 is an equidigital number, since it uses as much as digits as its factorization.

2597216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81173 (or 81165 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The square root of 2597216 is about 1611.5880366893. The cubic root of 2597216 is about 137.4577897983.

The spelling of 2597216 in words is "two million, five hundred ninety-seven thousand, two hundred sixteen".