378628759 has 4 divisors (see below), whose sum is σ = 379507680. Its totient is φ = 377749840.

The previous prime is 378628753. The next prime is 378628763. The reversal of 378628759 is 957826873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 957826873 = 997 ⋅960709.

It is a cyclic number.

It is not a de Polignac number, because 378628759 - 2¹⁹ = 378104471 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 (378628753) 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, 438814 + ... + 439675.

It is an arithmetic number, because the mean of its divisors is an integer number (94876920).

Almost surely, 2^378628759 is an apocalyptic number.

378628759 is a deficient number, since it is larger than the sum of its proper divisors (878921).

378628759 is an equidigital number, since it uses as much as digits as its factorization.

378628759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878920.

The product of its digits is 5080320, while the sum is 55.

The square root of 378628759 is about 19458.3853132782. The cubic root of 378628759 is about 723.4433562858.

The spelling of 378628759 in words is "three hundred seventy-eight million, six hundred twenty-eight thousand, seven hundred fifty-nine".