2688485 has 8 divisors (see below), whose sum is σ = 3256440. Its totient is φ = 2130624.

The previous prime is 2688479. The next prime is 2688487. The reversal of 2688485 is 5848862.

It can be written as a sum of positive squares in 4 ways, for example, as 276676 + 2411809 = 526^2 + 1553^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2688485 - 2⁶ = 2688421 is a prime.

It is a super-3 number, since 3×2688485³ = 58296718333465452375, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688487) 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, 1922 + ... + 3011.

It is an arithmetic number, because the mean of its divisors is an integer number (407055).

2^2688485 is an apocalyptic number.

It is an amenable number.

2688485 is a deficient number, since it is larger than the sum of its proper divisors (567955).

2688485 is a wasteful number, since it uses less digits than its factorization.

2688485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047.

The product of its digits is 122880, while the sum is 41.

The square root of 2688485 is about 1639.6600257370. The cubic root of 2688485 is about 139.0494277575.

It can be divided in two parts, 2 and 688485, that multiplied together give a triangular number (1376970 = T₁₆₅₉).

The spelling of 2688485 in words is "two million, six hundred eighty-eight thousand, four hundred eighty-five".