420753479 has 2 divisors, whose sum is σ = 420753480. Its totient is φ = 420753478.

The previous prime is 420753401. The next prime is 420753481. The reversal of 420753479 is 974357024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420753479 - 2¹² = 420749383 is a prime.

Together with 420753481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420753679) 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, 210376739 + 210376740.

It is an arithmetic number, because the mean of its divisors is an integer number (210376740).

Almost surely, 2^420753479 is an apocalyptic number.

420753479 is a deficient number, since it is larger than the sum of its proper divisors (1).

420753479 is an equidigital number, since it uses as much as digits as its factorization.

420753479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 420753479 is about 20512.2762998162. The cubic root of 420753479 is about 749.3348051585.

It can be divided in two parts, 42075 and 3479, that added together give a palindrome (45554).

The spelling of 420753479 in words is "four hundred twenty million, seven hundred fifty-three thousand, four hundred seventy-nine".