5673978 has 24 divisors (see below), whose sum is σ = 12419316. Its totient is φ = 1872000.

The previous prime is 5673973. The next prime is 5673991. The reversal of 5673978 is 8793765.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5631129 + 42849 = 2373^2 + 207^2 .

It is not an unprimeable number, because it can be changed into a prime (5673973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258 + ... + 3378.

Almost surely, 2^5673978 is an apocalyptic number.

5673978 is an abundant number, since it is smaller than the sum of its proper divisors (6745338).

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

5673978 is a wasteful number, since it uses less digits than its factorization.

5673978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230 (or 3227 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 5673978 is about 2382.0113349856. The cubic root of 5673978 is about 178.3593506358.

The spelling of 5673978 in words is "five million, six hundred seventy-three thousand, nine hundred seventy-eight".