378407863 has 16 divisors (see below), whose sum is σ = 401241600. Its totient is φ = 356312320.

The previous prime is 378407849. The next prime is 378407927. The reversal of 378407863 is 368704873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378407863 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 (378407833) 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, 292923 + ... + 294211.

It is an arithmetic number, because the mean of its divisors is an integer number (25077600).

Almost surely, 2^378407863 is an apocalyptic number.

378407863 is a deficient number, since it is larger than the sum of its proper divisors (22833737).

378407863 is a wasteful number, since it uses less digits than its factorization.

378407863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 378407863 is about 19452.7083718438. The cubic root of 378407863 is about 723.3026407632.

The spelling of 378407863 in words is "three hundred seventy-eight million, four hundred seven thousand, eight hundred sixty-three".