2946978 has 24 divisors (see below), whose sum is σ = 6452316. Its totient is φ = 972000.

The previous prime is 2946973. The next prime is 2947027. The reversal of 2946978 is 8796492.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2424249 + 522729 = 1557^2 + 723^2 .

It is not an unprimeable number, because it can be changed into a prime (2946973) 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 11 ways as a sum of consecutive naturals, for example, 1008 + ... + 2628.

2^2946978 is an apocalyptic number.

2946978 is an abundant number, since it is smaller than the sum of its proper divisors (3505338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2946978 is a wasteful number, since it uses less digits than its factorization.

2946978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1727 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 2946978 is about 1716.6764401016. The cubic root of 2946978 is about 143.3702242642.

The spelling of 2946978 in words is "two million, nine hundred forty-six thousand, nine hundred seventy-eight".