2973978 has 24 divisors (see below), whose sum is σ = 7364448. Its totient is φ = 849672.

The previous prime is 2973961. The next prime is 2974001. The reversal of 2973978 is 8793792.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11676 + ... + 11927.

It is an arithmetic number, because the mean of its divisors is an integer number (306852).

2^2973978 is an apocalyptic number.

2973978 is an abundant number, since it is smaller than the sum of its proper divisors (4390470).

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

2973978 is a wasteful number, since it uses less digits than its factorization.

2973978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23618 (or 23615 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 2973978 is about 1724.5225426187. The cubic root of 2973978 is about 143.8067430681.

The spelling of 2973978 in words is "two million, nine hundred seventy-three thousand, nine hundred seventy-eight".