378223759 has 4 divisors (see below), whose sum is σ = 378263704. Its totient is φ = 378183816.

The previous prime is 378223751. The next prime is 378223763. The reversal of 378223759 is 957322873.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 378223759 - 2³ = 378223751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378223751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3169 + ... + 27685.

It is an arithmetic number, because the mean of its divisors is an integer number (94565926).

Almost surely, 2^378223759 is an apocalyptic number.

378223759 is a deficient number, since it is larger than the sum of its proper divisors (39945).

378223759 is a wasteful number, since it uses less digits than its factorization.

378223759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39944.

The product of its digits is 635040, while the sum is 46.

The square root of 378223759 is about 19447.9757044274. The cubic root of 378223759 is about 723.1853206933.

The spelling of 378223759 in words is "three hundred seventy-eight million, two hundred twenty-three thousand, seven hundred fifty-nine".