2978827 has 4 divisors (see below), whose sum is σ = 2984400. Its totient is φ = 2973256.

The previous prime is 2978819. The next prime is 2978869. The reversal of 2978827 is 7288792.

2978827 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 is a cyclic number.

It is not a de Polignac number, because 2978827 - 2³ = 2978819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2978627) 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, 1888 + ... + 3085.

It is an arithmetic number, because the mean of its divisors is an integer number (746100).

2^2978827 is an apocalyptic number.

2978827 is a deficient number, since it is larger than the sum of its proper divisors (5573).

2978827 is an equidigital number, since it uses as much as digits as its factorization.

2978827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5572.

The product of its digits is 112896, while the sum is 43.

The square root of 2978827 is about 1725.9278663953. The cubic root of 2978827 is about 143.8848584467.

The spelling of 2978827 in words is "two million, nine hundred seventy-eight thousand, eight hundred twenty-seven".