378670879 has 4 divisors (see below), whose sum is σ = 378743584. Its totient is φ = 378598176.

The previous prime is 378670871. The next prime is 378670927. The reversal of 378670879 is 978076873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978076873 = 157 ⋅6229789.

It is a cyclic number.

It is not a de Polignac number, because 378670879 - 2³ = 378670871 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 (378670871) 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, 27882 + ... + 39175.

It is an arithmetic number, because the mean of its divisors is an integer number (94685896).

Almost surely, 2^378670879 is an apocalyptic number.

378670879 is a deficient number, since it is larger than the sum of its proper divisors (72705).

378670879 is an equidigital number, since it uses as much as digits as its factorization.

378670879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72704.

The product of its (nonzero) digits is 3556224, while the sum is 55.

The square root of 378670879 is about 19459.4675929225. The cubic root of 378670879 is about 723.4701814222.

The spelling of 378670879 in words is "three hundred seventy-eight million, six hundred seventy thousand, eight hundred seventy-nine".