8120479 has 2 divisors, whose sum is σ = 8120480. Its totient is φ = 8120478.

The previous prime is 8120477. The next prime is 8120491. The reversal of 8120479 is 9740218.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8120479 - 2¹ = 8120477 is a prime.

Together with 8120477, it forms a pair of twin primes.

8120479 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8120479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8120477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4060239 + 4060240.

It is an arithmetic number, because the mean of its divisors is an integer number (4060240).

Almost surely, 2^8120479 is an apocalyptic number.

8120479 is a deficient number, since it is larger than the sum of its proper divisors (1).

8120479 is an equidigital number, since it uses as much as digits as its factorization.

8120479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 8120479 is about 2849.6454165387. The cubic root of 8120479 is about 200.9989934192.

The spelling of 8120479 in words is "eight million, one hundred twenty thousand, four hundred seventy-nine".