2688901 has 4 divisors (see below), whose sum is σ = 2761612. Its totient is φ = 2616192.

The previous prime is 2688887. The next prime is 2688913. The reversal of 2688901 is 1098862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1098862 = 2 ⋅549431.

It can be written as a sum of positive squares in 2 ways, for example, as 1887876 + 801025 = 1374^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 2688901 - 2⁵ = 2688869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36300 + ... + 36373.

It is an arithmetic number, because the mean of its divisors is an integer number (690403).

2^2688901 is an apocalyptic number.

It is an amenable number.

2688901 is a deficient number, since it is larger than the sum of its proper divisors (72711).

2688901 is an equidigital number, since it uses as much as digits as its factorization.

2688901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72710.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2688901 is about 1639.7868763958. The cubic root of 2688901 is about 139.0565992783.

The spelling of 2688901 in words is "two million, six hundred eighty-eight thousand, nine hundred one".