5211979 has 4 divisors (see below), whose sum is σ = 5518584. Its totient is φ = 4905376.

The previous prime is 5211959. The next prime is 5212003. The reversal of 5211979 is 9791125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5211979 - 2⁹ = 5211467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5211919) by changing a digit.

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, 153277 + ... + 153310.

It is an arithmetic number, because the mean of its divisors is an integer number (1379646).

Almost surely, 2^5211979 is an apocalyptic number.

5211979 is a deficient number, since it is larger than the sum of its proper divisors (306605).

5211979 is a wasteful number, since it uses less digits than its factorization.

5211979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306604.

The product of its digits is 5670, while the sum is 34.

The square root of 5211979 is about 2282.9759087647. The cubic root of 5211979 is about 173.3807533801.

It can be divided in two parts, 521 and 1979, that added together give a square (2500 = 50²).

The spelling of 5211979 in words is "five million, two hundred eleven thousand, nine hundred seventy-nine".