2663745 has 32 divisors (see below), whose sum is σ = 5087232. Its totient is φ = 1163712.

The previous prime is 2663711. The next prime is 2663761. The reversal of 2663745 is 5473662.

It is not a de Polignac number, because 2663745 - 2¹⁰ = 2662721 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁴ + 6⁵ + 3¹¹ + 7² + 4³ + 5⁹ .

2663745 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1864 + ... + 2966.

It is an arithmetic number, because the mean of its divisors is an integer number (158976).

2^2663745 is an apocalyptic number.

It is an amenable number.

2663745 is a deficient number, since it is larger than the sum of its proper divisors (2423487).

2663745 is a wasteful number, since it uses less digits than its factorization.

2663745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141.

The product of its digits is 30240, while the sum is 33.

The square root of 2663745 is about 1632.0983426252. The cubic root of 2663745 is about 138.6215921001.

The spelling of 2663745 in words is "two million, six hundred sixty-three thousand, seven hundred forty-five".