2755945 has 8 divisors (see below), whose sum is σ = 3396744. Its totient is φ = 2145024.

The previous prime is 2755943. The next prime is 2755967. The reversal of 2755945 is 5495572.

It can be written as a sum of positive squares in 4 ways, for example, as 1447209 + 1308736 = 1203^2 + 1144^2 .

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 2755945 - 2¹ = 2755943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2755943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7264 + ... + 7633.

It is an arithmetic number, because the mean of its divisors is an integer number (424593).

2^2755945 is an apocalyptic number.

It is an amenable number.

2755945 is a deficient number, since it is larger than the sum of its proper divisors (640799).

2755945 is a wasteful number, since it uses less digits than its factorization.

2755945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14939.

The product of its digits is 63000, while the sum is 37.

The square root of 2755945 is about 1660.1039124103. The cubic root of 2755945 is about 140.2028521950.

The spelling of 2755945 in words is "two million, seven hundred fifty-five thousand, nine hundred forty-five".