5617978 has 8 divisors (see below), whose sum is σ = 8565300. Its totient is φ = 2762880.

The previous prime is 5617961. The next prime is 5617981. The reversal of 5617978 is 8797165.

It can be written as a sum of positive squares in 2 ways, for example, as 3621409 + 1996569 = 1903^2 + 1413^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22903 + ... + 23146.

Almost surely, 2^5617978 is an apocalyptic number.

5617978 is a deficient number, since it is larger than the sum of its proper divisors (2947322).

5617978 is a wasteful number, since it uses less digits than its factorization.

5617978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46112.

The product of its digits is 105840, while the sum is 43.

The square root of 5617978 is about 2370.2274152494. The cubic root of 5617978 is about 177.7706299499.

The spelling of 5617978 in words is "five million, six hundred seventeen thousand, nine hundred seventy-eight".