378837785 has 8 divisors (see below), whose sum is σ = 460360320. Its totient is φ = 299233584.

The previous prime is 378837731. The next prime is 378837791. The reversal of 378837785 is 587738873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 378837785 - 2¹⁸ = 378575641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378837785.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479147 + ... + 479936.

It is an arithmetic number, because the mean of its divisors is an integer number (57545040).

Almost surely, 2^378837785 is an apocalyptic number.

It is an amenable number.

378837785 is a deficient number, since it is larger than the sum of its proper divisors (81522535).

378837785 is an equidigital number, since it uses as much as digits as its factorization.

378837785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959167.

The product of its digits is 7902720, while the sum is 56.

The square root of 378837785 is about 19463.7556756141. The cubic root of 378837785 is about 723.5764599735.

The spelling of 378837785 in words is "three hundred seventy-eight million, eight hundred thirty-seven thousand, seven hundred eighty-five".