382408813 has 2 divisors, whose sum is σ = 382408814. Its totient is φ = 382408812.

The previous prime is 382408771. The next prime is 382408841. The reversal of 382408813 is 318804283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320660649 + 61748164 = 17907^2 + 7858^2 .

It is a cyclic number.

It is not a de Polignac number, because 382408813 - 2²¹ = 380311661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382408883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191204406 + 191204407.

It is an arithmetic number, because the mean of its divisors is an integer number (191204407).

Almost surely, 2^382408813 is an apocalyptic number.

It is an amenable number.

382408813 is a deficient number, since it is larger than the sum of its proper divisors (1).

382408813 is an equidigital number, since it uses as much as digits as its factorization.

382408813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 382408813 is about 19555.2758354363. The cubic root of 382408813 is about 725.8428963106.

The spelling of 382408813 in words is "three hundred eighty-two million, four hundred eight thousand, eight hundred thirteen".