2733561 has 16 divisors (see below), whose sum is σ = 4084800. Its totient is φ = 1806624.

The previous prime is 2733559. The next prime is 2733589. The reversal of 2733561 is 1653372.

It is a happy number.

It is not a de Polignac number, because 2733561 - 2¹ = 2733559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2733541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3330 + ... + 4068.

It is an arithmetic number, because the mean of its divisors is an integer number (255300).

2^2733561 is an apocalyptic number.

It is an amenable number.

2733561 is a deficient number, since it is larger than the sum of its proper divisors (1351239).

2733561 is a wasteful number, since it uses less digits than its factorization.

2733561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 879 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 2733561 is about 1653.3484206301. The cubic root of 2733561 is about 139.8222403785.

The spelling of 2733561 in words is "two million, seven hundred thirty-three thousand, five hundred sixty-one".