378788089 has 4 divisors (see below), whose sum is σ = 379461456. Its totient is φ = 378114724.

The previous prime is 378788029. The next prime is 378788107. The reversal of 378788089 is 980887873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 378788089 - 2⁷ = 378787961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378788029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335839 + ... + 336964.

It is an arithmetic number, because the mean of its divisors is an integer number (94865364).

Almost surely, 2^378788089 is an apocalyptic number.

It is an amenable number.

378788089 is a deficient number, since it is larger than the sum of its proper divisors (673367).

378788089 is an equidigital number, since it uses as much as digits as its factorization.

378788089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673366.

The product of its (nonzero) digits is 5419008, while the sum is 58.

The square root of 378788089 is about 19462.4790044845. The cubic root of 378788089 is about 723.5448189655.

The spelling of 378788089 in words is "three hundred seventy-eight million, seven hundred eighty-eight thousand, eighty-nine".