2945617 has 4 divisors (see below), whose sum is σ = 3047220. Its totient is φ = 2844016.

The previous prime is 2945611. The next prime is 2945639. The reversal of 2945617 is 7165492.

2945617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1597696 + 1347921 = 1264^2 + 1161^2 .

It is a cyclic number.

It is not a de Polignac number, because 2945617 - 2³ = 2945609 is a prime.

It is a Duffinian number.

2945617 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2945611) 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 3 ways as a sum of consecutive naturals, for example, 50758 + ... + 50815.

It is an arithmetic number, because the mean of its divisors is an integer number (761805).

2^2945617 is an apocalyptic number.

It is an amenable number.

2945617 is a deficient number, since it is larger than the sum of its proper divisors (101603).

2945617 is a wasteful number, since it uses less digits than its factorization.

2945617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101602.

The product of its digits is 15120, while the sum is 34.

The square root of 2945617 is about 1716.2799888130. The cubic root of 2945617 is about 143.3481500217.

The spelling of 2945617 in words is "two million, nine hundred forty-five thousand, six hundred seventeen".