2905317 has 18 divisors (see below), whose sum is σ = 4461938. Its totient is φ = 1821312.

The previous prime is 2905313. The next prime is 2905319. The reversal of 2905317 is 7135092.

2905317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 443556 + 2461761 = 666^2 + 1569^2 .

It is not a de Polignac number, because 2905317 - 2² = 2905313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2905313) 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 17 ways as a sum of consecutive naturals, for example, 2043 + ... + 3159.

2^2905317 is an apocalyptic number.

It is an amenable number.

2905317 is a deficient number, since it is larger than the sum of its proper divisors (1556621).

2905317 is a wasteful number, since it uses less digits than its factorization.

2905317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2905317 is about 1704.4990466410. The cubic root of 2905317 is about 142.6914140502.

The spelling of 2905317 in words is "two million, nine hundred five thousand, three hundred seventeen".