2681489 has 4 divisors (see below), whose sum is σ = 2822640. Its totient is φ = 2540340.

The previous prime is 2681477. The next prime is 2681507. The reversal of 2681489 is 9841862.

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 a cyclic number.

It is not a de Polignac number, because 2681489 - 2⁴ = 2681473 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2681389) 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, 70547 + ... + 70584.

It is an arithmetic number, because the mean of its divisors is an integer number (705660).

2^2681489 is an apocalyptic number.

It is an amenable number.

2681489 is a deficient number, since it is larger than the sum of its proper divisors (141151).

2681489 is a wasteful number, since it uses less digits than its factorization.

2681489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141150.

The product of its digits is 27648, while the sum is 38.

The square root of 2681489 is about 1637.5252669806. The cubic root of 2681489 is about 138.9287110937.

The spelling of 2681489 in words is "two million, six hundred eighty-one thousand, four hundred eighty-nine".