2683521 has 6 divisors (see below), whose sum is σ = 3876210. Its totient is φ = 1789008.

The previous prime is 2683519. The next prime is 2683529. The reversal of 2683521 is 1253862.

It can be written as a sum of positive squares in only one way, i.e., 2143296 + 540225 = 1464^2 + 735^2 .

It is not a de Polignac number, because 2683521 - 2¹ = 2683519 is a prime.

2683521 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2683529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149076 + ... + 149093.

It is an arithmetic number, because the mean of its divisors is an integer number (646035).

2^2683521 is an apocalyptic number.

It is an amenable number.

2683521 is a deficient number, since it is larger than the sum of its proper divisors (1192689).

2683521 is a wasteful number, since it uses less digits than its factorization.

2683521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298175 (or 298172 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2683521 is about 1638.1455979247. The cubic root of 2683521 is about 138.9637950666.

The spelling of 2683521 in words is "two million, six hundred eighty-three thousand, five hundred twenty-one".