5211978 has 8 divisors (see below), whose sum is σ = 10423968. Its totient is φ = 1737324.

The previous prime is 5211959. The next prime is 5212003. The reversal of 5211978 is 8791125.

5211978 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

5211978 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434326 + ... + 434337.

It is an arithmetic number, because the mean of its divisors is an integer number (1302996).

Almost surely, 2^5211978 is an apocalyptic number.

5211978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5211978 is a wasteful number, since it uses less digits than its factorization.

5211978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868668.

The product of its digits is 5040, while the sum is 33.

The square root of 5211978 is about 2282.9756897523. The cubic root of 5211978 is about 173.3807422915.

The spelling of 5211978 in words is "five million, two hundred eleven thousand, nine hundred seventy-eight".