2917489 has 4 divisors (see below), whose sum is σ = 3089124. Its totient is φ = 2745856.

The previous prime is 2917483. The next prime is 2917493. The reversal of 2917489 is 9847192.

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 2250000 + 667489 = 1500^2 + 817^2 .

It is a cyclic number.

It is not a de Polignac number, because 2917489 - 2⁵ = 2917457 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2917483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85792 + ... + 85825.

It is an arithmetic number, because the mean of its divisors is an integer number (772281).

2^2917489 is an apocalyptic number.

It is an amenable number.

2917489 is a deficient number, since it is larger than the sum of its proper divisors (171635).

2917489 is a wasteful number, since it uses less digits than its factorization.

2917489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171634.

The product of its digits is 36288, while the sum is 40.

The square root of 2917489 is about 1708.0658652406. The cubic root of 2917489 is about 142.8904078249.

The spelling of 2917489 in words is "two million, nine hundred seventeen thousand, four hundred eighty-nine".