378987914 has 4 divisors (see below), whose sum is σ = 568481874. Its totient is φ = 189493956.

The previous prime is 378987911. The next prime is 378987923. The reversal of 378987914 is 419789873.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 356567689 + 22420225 = 18883^2 + 4735^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 378987914.

It is not an unprimeable number, because it can be changed into a prime (378987911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94746977 + ... + 94746980.

Almost surely, 2^378987914 is an apocalyptic number.

378987914 is a deficient number, since it is larger than the sum of its proper divisors (189493960).

378987914 is a wasteful number, since it uses less digits than its factorization.

378987914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189493959.

The product of its digits is 3048192, while the sum is 56.

The square root of 378987914 is about 19467.6119233973. The cubic root of 378987914 is about 723.6720289903.

The spelling of 378987914 in words is "three hundred seventy-eight million, nine hundred eighty-seven thousand, nine hundred fourteen".