408779 has 8 divisors (see below), whose sum is σ = 487680. Its totient is φ = 335016.

The previous prime is 408773. The next prime is 408787. The reversal of 408779 is 977804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 408779 - 2⁴ = 408763 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 408779.

It is not an unprimeable number, because it can be changed into a prime (408773) 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 in 7 ways as a sum of consecutive naturals, for example, 1109 + ... + 1430.

It is an arithmetic number, because the mean of its divisors is an integer number (60960).

2⁴⁰⁸⁷⁷⁹ is an apocalyptic number.

408779 is a deficient number, since it is larger than the sum of its proper divisors (78901).

408779 is a wasteful number, since it uses less digits than its factorization.

408779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 408779 is about 639.3582720197. The cubic root of 408779 is about 74.2157690806.

The spelling of 408779 in words is "four hundred eight thousand, seven hundred seventy-nine".