378115887 has 8 divisors (see below), whose sum is σ = 533810736. Its totient is φ = 237249152.

The previous prime is 378115873. The next prime is 378115909. The reversal of 378115887 is 788511873.

It is a happy number.

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 378115887 - 2¹¹ = 378113839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378115807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3706968 + ... + 3707069.

It is an arithmetic number, because the mean of its divisors is an integer number (66726342).

Almost surely, 2^378115887 is an apocalyptic number.

378115887 is a deficient number, since it is larger than the sum of its proper divisors (155694849).

378115887 is a wasteful number, since it uses less digits than its factorization.

378115887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7414057.

The product of its digits is 376320, while the sum is 48.

The square root of 378115887 is about 19445.2021588874. The cubic root of 378115887 is about 723.1165616913.

The spelling of 378115887 in words is "three hundred seventy-eight million, one hundred fifteen thousand, eight hundred eighty-seven".