385952089 has 2 divisors, whose sum is σ = 385952090. Its totient is φ = 385952088.

The previous prime is 385952087. The next prime is 385952107. The reversal of 385952089 is 980259583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357777225 + 28174864 = 18915^2 + 5308^2 .

It is a cyclic number.

It is not a de Polignac number, because 385952089 - 2¹ = 385952087 is a prime.

Together with 385952087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (385952081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192976044 + 192976045.

It is an arithmetic number, because the mean of its divisors is an integer number (192976045).

Almost surely, 2^385952089 is an apocalyptic number.

It is an amenable number.

385952089 is a deficient number, since it is larger than the sum of its proper divisors (1).

385952089 is an equidigital number, since it uses as much as digits as its factorization.

385952089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 385952089 is about 19645.6633637045. The cubic root of 385952089 is about 728.0778160439.

The spelling of 385952089 in words is "three hundred eighty-five million, nine hundred fifty-two thousand, eighty-nine".