2673561 has 8 divisors (see below), whose sum is σ = 3888864. Its totient is φ = 1620320.

The previous prime is 2673557. The next prime is 2673577. The reversal of 2673561 is 1653762.

2673561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2673561 - 2² = 2673557 is a prime.

It is a Curzon number.

2673561 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2673511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40476 + ... + 40541.

It is an arithmetic number, because the mean of its divisors is an integer number (486108).

2^2673561 is an apocalyptic number.

It is an amenable number.

2673561 is a deficient number, since it is larger than the sum of its proper divisors (1215303).

2673561 is a wasteful number, since it uses less digits than its factorization.

2673561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81031.

The product of its digits is 7560, while the sum is 30.

The square root of 2673561 is about 1635.1027490650. The cubic root of 2673561 is about 138.7916586217.

It can be divided in two parts, 26735 and 61, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 2673561 in words is "two million, six hundred seventy-three thousand, five hundred sixty-one".