378013487 has 4 divisors (see below), whose sum is σ = 394448880. Its totient is φ = 361578096.

The previous prime is 378013459. The next prime is 378013501. The reversal of 378013487 is 784310873.

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

It is a cyclic number.

It is not a de Polignac number, because 378013487 - 2¹⁰ = 378012463 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 (378013687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8217662 + ... + 8217707.

It is an arithmetic number, because the mean of its divisors is an integer number (98612220).

Almost surely, 2^378013487 is an apocalyptic number.

378013487 is a deficient number, since it is larger than the sum of its proper divisors (16435393).

378013487 is a wasteful number, since it uses less digits than its factorization.

378013487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16435392.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 378013487 is about 19442.5689403432. The cubic root of 378013487 is about 723.0512785124.

The spelling of 378013487 in words is "three hundred seventy-eight million, thirteen thousand, four hundred eighty-seven".