378439087 has 8 divisors (see below), whose sum is σ = 417028304. Its totient is φ = 341203968.

The previous prime is 378439063. The next prime is 378439097. The reversal of 378439087 is 780934873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 378439087 - 2¹⁹ = 377914799 is a prime.

It is a super-2 number, since 2×378439087² = 286432285138787138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378439087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378439097) 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, 337938 + ... + 339055.

It is an arithmetic number, because the mean of its divisors is an integer number (52128538).

Almost surely, 2^378439087 is an apocalyptic number.

378439087 is a deficient number, since it is larger than the sum of its proper divisors (38589217).

378439087 is a wasteful number, since it uses less digits than its factorization.

378439087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677049.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 378439087 is about 19453.5109170556. The cubic root of 378439087 is about 723.3225344482.

The spelling of 378439087 in words is "three hundred seventy-eight million, four hundred thirty-nine thousand, eighty-seven".