408724497 has 12 divisors (see below), whose sum is σ = 596113024. Its totient is φ = 269836920.

The previous prime is 408724469. The next prime is 408724501. The reversal of 408724497 is 794427804.

It is not a de Polignac number, because 408724497 - 2⁸ = 408724241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408724997) 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 11 ways as a sum of consecutive naturals, for example, 219529 + ... + 221382.

Almost surely, 2^408724497 is an apocalyptic number.

It is an amenable number.

408724497 is a deficient number, since it is larger than the sum of its proper divisors (187388527).

408724497 is a wasteful number, since it uses less digits than its factorization.

408724497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441020 (or 441017 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 408724497 is about 20216.9358954318. The cubic root of 408724497 is about 742.1247050786.

It can be divided in two parts, 40872 and 4497, that added together give a square (45369 = 213²).

The spelling of 408724497 in words is "four hundred eight million, seven hundred twenty-four thousand, four hundred ninety-seven".