408983749 has 2 divisors, whose sum is σ = 408983750. Its totient is φ = 408983748.

The previous prime is 408983717. The next prime is 408983777. The reversal of 408983749 is 947389804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408767524 + 216225 = 20218^2 + 465^2 .

It is a cyclic number.

It is not a de Polignac number, because 408983749 - 2⁵ = 408983717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 408983696 and 408983705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408983779) 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, 204491874 + 204491875.

It is an arithmetic number, because the mean of its divisors is an integer number (204491875).

Almost surely, 2^408983749 is an apocalyptic number.

It is an amenable number.

408983749 is a deficient number, since it is larger than the sum of its proper divisors (1).

408983749 is an equidigital number, since it uses as much as digits as its factorization.

408983749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 408983749 is about 20223.3466320488. The cubic root of 408983749 is about 742.2815806357.

The spelling of 408983749 in words is "four hundred eight million, nine hundred eighty-three thousand, seven hundred forty-nine".