383879081 has 2 divisors, whose sum is σ = 383879082. Its totient is φ = 383879080.

The previous prime is 383879077. The next prime is 383879087. The reversal of 383879081 is 180978383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383376400 + 502681 = 19580^2 + 709^2 .

It is a cyclic number.

It is not a de Polignac number, because 383879081 - 2² = 383879077 is a prime.

It is a super-2 number, since 2×383879081² = 294726297658809122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (383879087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191939540 + 191939541.

It is an arithmetic number, because the mean of its divisors is an integer number (191939541).

Almost surely, 2^383879081 is an apocalyptic number.

It is an amenable number.

383879081 is a deficient number, since it is larger than the sum of its proper divisors (1).

383879081 is an equidigital number, since it uses as much as digits as its factorization.

383879081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 383879081 is about 19592.8323884016. The cubic root of 383879081 is about 726.7719359272.

The spelling of 383879081 in words is "three hundred eighty-three million, eight hundred seventy-nine thousand, eighty-one".