378563317 has 16 divisors (see below), whose sum is σ = 425021184. Its totient is φ = 334152000.

The previous prime is 378563299. The next prime is 378563323. The reversal of 378563317 is 713365873.

It is a cyclic number.

It is not a de Polignac number, because 378563317 - 2¹¹ = 378561269 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 (378563347) 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, 370267 + ... + 371287.

It is an arithmetic number, because the mean of its divisors is an integer number (26563824).

Almost surely, 2^378563317 is an apocalyptic number.

378563317 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

378563317 is a deficient number, since it is larger than the sum of its proper divisors (46457867).

378563317 is a wasteful number, since it uses less digits than its factorization.

378563317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980.

The product of its digits is 317520, while the sum is 43.

The square root of 378563317 is about 19456.7036519550. The cubic root of 378563317 is about 723.4016740251.

The spelling of 378563317 in words is "three hundred seventy-eight million, five hundred sixty-three thousand, three hundred seventeen".