5195978 has 8 divisors (see below), whose sum is σ = 7817472. Its totient is φ = 2590156.

The previous prime is 5195977. The next prime is 5195989. The reversal of 5195978 is 8795915.

It is a happy number.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5195977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3050 + ... + 4437.

It is an arithmetic number, because the mean of its divisors is an integer number (977184).

Almost surely, 2^5195978 is an apocalyptic number.

5195978 is a deficient number, since it is larger than the sum of its proper divisors (2621494).

5195978 is a wasteful number, since it uses less digits than its factorization.

5195978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7836.

The product of its digits is 113400, while the sum is 44.

The square root of 5195978 is about 2279.4687977685. The cubic root of 5195978 is about 173.2031427051.

The spelling of 5195978 in words is "five million, one hundred ninety-five thousand, nine hundred seventy-eight".