2835681 has 4 divisors (see below), whose sum is σ = 3780912. Its totient is φ = 1890452.

The previous prime is 2835673. The next prime is 2835689. The reversal of 2835681 is 1865382.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (2835673) and next prime (2835689).

It is a cyclic number.

It is not a de Polignac number, because 2835681 - 2³ = 2835673 is a prime.

It is a super-2 number, since 2×2835681² = 16082173467522, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2835689) 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, 472611 + ... + 472616.

It is an arithmetic number, because the mean of its divisors is an integer number (945228).

2^2835681 is an apocalyptic number.

It is an amenable number.

2835681 is a deficient number, since it is larger than the sum of its proper divisors (945231).

2835681 is an equidigital number, since it uses as much as digits as its factorization.

2835681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945230.

The product of its digits is 11520, while the sum is 33.

The square root of 2835681 is about 1683.9480395784. The cubic root of 2835681 is about 141.5421509523.

Subtracting from 2835681 its reverse (1865382), we obtain a cube (970299 = 99³).

The spelling of 2835681 in words is "two million, eight hundred thirty-five thousand, six hundred eighty-one".