10420279 has 2 divisors, whose sum is σ = 10420280. Its totient is φ = 10420278.

The previous prime is 10420261. The next prime is 10420307. The reversal of 10420279 is 97202401.

It is a weak prime.

It is an emirp because it is prime and its reverse (97202401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10420279 - 2¹¹ = 10418231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10420259) 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 as a sum of consecutive naturals, namely, 5210139 + 5210140.

It is an arithmetic number, because the mean of its divisors is an integer number (5210140).

Almost surely, 2^10420279 is an apocalyptic number.

10420279 is a deficient number, since it is larger than the sum of its proper divisors (1).

10420279 is an equidigital number, since it uses as much as digits as its factorization.

10420279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 10420279 is about 3228.0456936047. The cubic root of 10420279 is about 218.4203585771.

The spelling of 10420279 in words is "ten million, four hundred twenty thousand, two hundred seventy-nine".