5185978 has 8 divisors (see below), whose sum is σ = 8890272. Its totient is φ = 2222556.

The previous prime is 5185949. The next prime is 5185979. The reversal of 5185978 is 8795815.

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

It is not an unprimeable number, because it can be changed into a prime (5185979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185200 + ... + 185227.

It is an arithmetic number, because the mean of its divisors is an integer number (1111284).

Almost surely, 2^5185978 is an apocalyptic number.

5185978 is a deficient number, since it is larger than the sum of its proper divisors (3704294).

5185978 is a wasteful number, since it uses less digits than its factorization.

5185978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370436.

The product of its digits is 100800, while the sum is 43.

The square root of 5185978 is about 2277.2742478674. The cubic root of 5185978 is about 173.0919577493.

The spelling of 5185978 in words is "five million, one hundred eighty-five thousand, nine hundred seventy-eight".