2822978 has 8 divisors (see below), whose sum is σ = 4297872. Its totient is φ = 1390356.

The previous prime is 2822971. The next prime is 2822987. The reversal of 2822978 is 8792282.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2822971) 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, 10400 + ... + 10667.

It is an arithmetic number, because the mean of its divisors is an integer number (537234).

2^2822978 is an apocalyptic number.

2822978 is a deficient number, since it is larger than the sum of its proper divisors (1474894).

2822978 is a wasteful number, since it uses less digits than its factorization.

2822978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21136.

The product of its digits is 32256, while the sum is 38.

The square root of 2822978 is about 1680.1720150032. The cubic root of 2822978 is about 141.3304791066.

The spelling of 2822978 in words is "two million, eight hundred twenty-two thousand, nine hundred seventy-eight".