5381978 has 16 divisors (see below), whose sum is σ = 9712320. Its totient is φ = 2185056.

The previous prime is 5381963. The next prime is 5381989. The reversal of 5381978 is 8791835.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9851 + ... + 10382.

It is an arithmetic number, because the mean of its divisors is an integer number (607020).

Almost surely, 2^5381978 is an apocalyptic number.

5381978 is a deficient number, since it is larger than the sum of its proper divisors (4330342).

5381978 is a wasteful number, since it uses less digits than its factorization.

5381978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20261.

The product of its digits is 60480, while the sum is 41.

The square root of 5381978 is about 2319.9090499414. The cubic root of 5381978 is about 175.2456739964.

The spelling of 5381978 in words is "five million, three hundred eighty-one thousand, nine hundred seventy-eight".