2978163 has 6 divisors (see below), whose sum is σ = 4301804. Its totient is φ = 1985436.

The previous prime is 2978161. The next prime is 2978177. The reversal of 2978163 is 3618792.

It is not a de Polignac number, because 2978163 - 2¹ = 2978161 is a prime.

It is a super-3 number, since 3×2978163³ = 79244046834143330241, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2978161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 165445 + ... + 165462.

2^2978163 is an apocalyptic number.

2978163 is a deficient number, since it is larger than the sum of its proper divisors (1323641).

2978163 is a wasteful number, since it uses less digits than its factorization.

2978163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330913 (or 330910 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2978163 is about 1725.7354953758. The cubic root of 2978163 is about 143.8741666939.

The spelling of 2978163 in words is "two million, nine hundred seventy-eight thousand, one hundred sixty-three".