2978285 has 8 divisors (see below), whose sum is σ = 3602016. Its totient is φ = 2363920.

The previous prime is 2978273. The next prime is 2978299. The reversal of 2978285 is 5828792.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2978285 - 2¹⁴ = 2961901 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1619 + ... + 2928.

It is an arithmetic number, because the mean of its divisors is an integer number (450252).

2^2978285 is an apocalyptic number.

It is an amenable number.

2978285 is a deficient number, since it is larger than the sum of its proper divisors (623731).

2978285 is a wasteful number, since it uses less digits than its factorization.

2978285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683.

The product of its digits is 80640, while the sum is 41.

The square root of 2978285 is about 1725.7708422615. The cubic root of 2978285 is about 143.8761312616.

The spelling of 2978285 in words is "two million, nine hundred seventy-eight thousand, two hundred eighty-five".