378000089 has 2 divisors, whose sum is σ = 378000090. Its totient is φ = 378000088.

The previous prime is 378000071. The next prime is 378000109. The reversal of 378000089 is 980000873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292991689 + 85008400 = 17117^2 + 9220^2 .

It is an emirp because it is prime and its reverse (980000873) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378000089 is a prime.

It is not a weakly prime, because it can be changed into another prime (378003089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189000044 + 189000045.

It is an arithmetic number, because the mean of its divisors is an integer number (189000045).

Almost surely, 2^378000089 is an apocalyptic number.

It is an amenable number.

378000089 is a deficient number, since it is larger than the sum of its proper divisors (1).

378000089 is an equidigital number, since it uses as much as digits as its factorization.

378000089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 378000089 is about 19442.2243840565. The cubic root of 378000089 is about 723.0427359993.

The spelling of 378000089 in words is "three hundred seventy-eight million, eighty-nine", and thus it is an aban number.