2978585 has 4 divisors (see below), whose sum is σ = 3574308. Its totient is φ = 2382864.

The previous prime is 2978551. The next prime is 2978593. The reversal of 2978585 is 5858792.

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 2166784 + 811801 = 1472^2 + 901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2978585 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297854 + ... + 297863.

It is an arithmetic number, because the mean of its divisors is an integer number (893577).

2^2978585 is an apocalyptic number.

It is an amenable number.

2978585 is a deficient number, since it is larger than the sum of its proper divisors (595723).

2978585 is an equidigital number, since it uses as much as digits as its factorization.

2978585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595722.

The product of its digits is 201600, while the sum is 44.

The square root of 2978585 is about 1725.8577577541. The cubic root of 2978585 is about 143.8809619377.

The spelling of 2978585 in words is "two million, nine hundred seventy-eight thousand, five hundred eighty-five".