378563871 has 16 divisors (see below), whose sum is σ = 610792704. Its totient is φ = 203597184.

The previous prime is 378563851. The next prime is 378563879. The reversal of 378563871 is 178365873.

It is not a de Polignac number, because 378563871 - 2⁵ = 378563839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378563871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378563879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529845 + ... + 530558.

It is an arithmetic number, because the mean of its divisors is an integer number (38174544).

Almost surely, 2^378563871 is an apocalyptic number.

378563871 is a deficient number, since it is larger than the sum of its proper divisors (232228833).

378563871 is a wasteful number, since it uses less digits than its factorization.

378563871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060430.

The product of its digits is 846720, while the sum is 48.

The square root of 378563871 is about 19456.7178886882. The cubic root of 378563871 is about 723.4020269069.

The spelling of 378563871 in words is "three hundred seventy-eight million, five hundred sixty-three thousand, eight hundred seventy-one".