408720479 has 2 divisors, whose sum is σ = 408720480. Its totient is φ = 408720478.

The previous prime is 408720467. The next prime is 408720493. The reversal of 408720479 is 974027804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 408720479 - 2¹² = 408716383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408720439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204360239 + 204360240.

It is an arithmetic number, because the mean of its divisors is an integer number (204360240).

Almost surely, 2^408720479 is an apocalyptic number.

408720479 is a deficient number, since it is larger than the sum of its proper divisors (1).

408720479 is an equidigital number, since it uses as much as digits as its factorization.

408720479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 408720479 is about 20216.8365230567. The cubic root of 408720479 is about 742.1222732312.

The spelling of 408720479 in words is "four hundred eight million, seven hundred twenty thousand, four hundred seventy-nine".